Tuesday, August 31, 2010

The First Free Hydroponic Nutrient Calculator Program :o)

After a lot of work and effort today I have the pleasure to share with you my latest development in the area of hydroponic nutrient design and creation, a totally new and free hydroponic nutrient calculator which I programmed using Delphi. This piece of software is absolutely unique and I can guarantee that you will not find any other similar program on the internet. The piece of code I am about to release was the natural evolution of my excel spreadsheet (which comes with my free ebook) and now has a ton more features which should make hydroponic nutrient calculation for absolutely anyone a total breeze. On today's post I want to share with you this program as well as a general description of its scope, uses and improvements over the excel spreadsheet available for nutrient calculation within my ebook.

One of my main objectives has always been to design and prepare my own hydroponic nutrien! t solutions and to help others do the same thing. Preparing your own solutions is not only something that gives you absolute control over the composition of the nutrients you are giving to your plants but it also allows you to make absolutely HUGE saving on commercial fertilizers. Using commercial liquid concentrated solutions the cost of a hydroponic garden is usually above 0.20 USD per gallon while if you make your own nutrients this price can drop as low as 0.01 USD per gallon. Additionally people from less developed countries where hydroponics are not very well established will be able to greatly benefit from making their own blends with this sometimes being the only way to have a hydroponic crop.
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The program I am releasing today will allow you to calculate the amount of salts you need to weight to arrive to a given hydroponic formula. The features of the program and its advantages over the spreadsheet previously available are highlighted below :
  • Ability to calculate weights of salts for any given hydroponic formulation
  • No need to have excel :o) any Windows platform will do.
  • Flexibility ! Choose which salts you want to use to makeup your nutrient solution
  • The program automatically determines which salts are better than others or pairs them up adequately if you have sever! al sources for the same nutrient
  • Input the volume you want in Liters, gallons or cubic meters
  • The program automatically determines if you need or don't need to prepare concentrated micro-nutrient and Fe solutions depending on the size of your reservoir
  • You can also choose to add all salts directly if you have scales with the necessary precision
  • Concentrated A+B solutions can be prepared
  • Save your solutions ! You can easily save your recipes to a text file for later printing or reference
  • Save salt selection
  • Select water quality parameters
  • Automatically corrects the weights of salts against your water quality analysis
  • Example recipe obtained using the program and the list of salts I personally use (although you may change those salts for others depending on where you live)
  • Automatically check for new updates
  • And many, many more ! :o)!
As yo! u see, t his new program is a great leap forward in custom nutrient solution design and preparation for the average hydroponic hobbyist and small business owner. Hopefully with this program you will be able to prepare your own solutions or improve your previous calculations if you had been using the spreadsheet. I hope that you enjoy the new program and leave any feedback you have here. As always I will be glad to take into account and implement your requests :o)
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solution set calculator

Triangle Shawls and fun with algebra


My first Triangle Shawl was Evelyn Clark's Spinner's Shawl pattern, modified to be stockinette rather than garter stitch. It's a bit small, but I did a pretty good job of using most of the yarn I had. I love it and wear it around the house a lot as a little extra layer around the neck. I even got so bold as to wear it in public; even though I am lacking an accessories gene --- wearing anything extra unnecessary to maintaining modesty and a normal temperature usually makes me feel exposed and awkward.

Triangle number two is being! knit with Sea Silk. I only have the one hank, I want to use as much of it as possible. This requires a few things easy to find household items; a scale, a calculator and some mathematics.

Pattern is Evelyn Clark's Flower Basket Shawl found in IK. I won't bother to dig out the exact issue, because everyone has already knit this pattern. I chose it because the pattern repeat is only 10 rows and the edging is only 12 rows (10 pattern rows and a bind-off). It will be easier to squeeze in as many pattern repeats as possible instead of a shawl such as the Spinner's Shawl where one must stop with the pattern repeats in time to commit to 40 rows of edging. Admittedly it makes for a more interesting shawl to have a different and complimentary border, but so it goes when the Sea Silk is so dear. Flower Basket it is.

Jessica has a shawl calculator on her blog but alas, it is in excel, something my poor littl! e mac cannot read. So I got some paper and a pencil and worked! it out myself. Eventually I did read her spreadsheet on my husband's computer. It is fine, but hides the math. So I am glad to have done this work anyway.

Much calculation, much scratching out, much musing, some greek letters and that Gaussian addition trick and I found a formula to compute how many stitches have been knit given the number of rows knit. Before writing it up, I searched the net a bit more and found that Susan had posted an alternate calculation, much simpler. She didn't simplify into algebra, so I did and it resulted in the same formula I found. Although I'm a little chagrined that I took a more circuitous route, in the end having my formula be the same as hers gives me confidence.

Here it is:
While knitting a triangular shawl where one starts with 7 stitches (ignore the set-up rows which use a trivial amount of yarn in the grand scheme of things) and increases four sti! tches every right side row, if N is the number of rows that have been knit then the total number of stitches done is N² + 5N. (now that I think about it, I am guessing one could derive this from a simple area of triangle formula.)

How does one use this delightfully compact formula? Well, I have knit 10 pattern repeats so far. With 26 rows to prepare for the main pattern, 10 rows per repeat, I have knit 126 rows. Therefore I have knit 126*126 + 5*126 = 16,506 stitches in total.

My scale says this weighs 55 grams, or about 300 stitches per gram.

Looks like plenty of yarn for another pattern repeat or two. Keeping in mind that the finishing will require 12 rows, how much yarn can I expect to use if I knit a few more repeats?

11 repeats: N = 126 (rows so far) + 10 (11th repeat) + 12 (border/finishing) = 148

148² + 5*148 is 22,644 stitches. At 300 stitches per gram, this will ! use 76 grams of yarn.

12 repeats: N = 158 Total S! titches = 25,754 or 86 grams

13 repeats: N = 168 Total Stitches = 29,064 or 97 grams of yarn.

Now, to tell the truth, I have 88 grams of yarn. Yes, I started with 100 grams, but we won't talk about how the Flower Basket pattern was not my first attempt, nor what happened to that tangled mess of crap 12 missing grams. So I can knit two more pattern repeats, 12 total, then work the edging. I ought to come very close to using up the 88 grams available, and if I go over by a few yards, well, I might be able to resurrect a few yards from the trashed bit.

Isn't it grand? I just love quadratic expressions, this one is so tidy and clean! And the thought of knitting just two more repeats and the edging sounds infinitely doable, after all, I've already done 10 repeats, what's a few more?

Of course, anyone who has actually knit a triangle like this is smirking at that statement. Looking at it from a more realistic perspective, I ha! ve knit 16,506 stitches and I will be knitting a total of 25,754 stitches. Therefore, I am only 64% done.

simplifying algebra calculator

IPL 2010 - The Most Valuable Player

As anybody who has ever been a fan of any sports will tell you, heated debates over the merits and demerits of one's favourite players are an intrinsic part of following the sport. The debates centre around a lot of things, but the crux of several arguments is a "my guy has better numbers than your guy" line.

Having done a Most Valuable Player analysis after last year's IPL [Link], it seemed only logical to go one better this year, and tweak the formulas involved to produce a more comprehensive analysis this time around. After all, everything about IPL-3 has been bigger than IPL-2 - the crowds in the stadiums, the noise, the number of advertisement breaks, and the off-field drama.

Thus here is the analysis of IPL-3's Most Valuable Player.

Just as equations off the field in the corridors of the BCCI have gotten more complex and unfathomable, so I found thi! s year, my equations for calculating the Batting and Bowling indexes for players getting more complex. There was one key difference though: I did not foresee any problem in actually explaining my equations.

Let us start with the batting. Batting, by its nature lends itself to greater manipulation by numbers because there exists a proportional relationship in the numbers one measures and the performances associated with them. Thus the more runs you score or the higher your strike rate - the better you have performed.

Amongst the simplest ways of measuring a Batting Index for players is to simply multiply the runs scored by the strike-rate. While this satisfies the basic criteria that one must account for while measuring a Batting Index in a limited overs game - runs scored and the speed with which runs are scored - it is a little too simple, and offers potential for tweaking.

The Batting Index for this rating, is calculated not by taking strike-rates into account, but taking relative strike-rates. The relative strike-rate of a batsman is simply his strike-rate divided by the tournament's average strike-rate. Thus if the tournament's average strike-rate has been 100, and Batsman A scores his runs at a strike-rate of 120, his relative strike-rate will be 1.2. If Batsman B scores his runs at a strike-rate of 90, his relative strike-rate will be 0.90.

When one uses relative strike-rates, it is easier to see batsmen who have scored at above-par rates getting benefited, while those who have been slow get penalized. However, in a Twenty20 form! at, the strike-rate is an extremely important measurement criterion and needs to be given added weightage. A score of 25 off 15 balls can often swing a match towards the team, while a score of 40 off 38 balls, while being numerically superior, will not help the team as much.

While increasing the weightage of the strike-rate, due care must be exercised so that rewards and penalties are automatically in-built into whatever formula is used, so that a Keiron Pollard who has scored at much above the normal scoring rates gets doubly benefited, but a Jacques Kallis who has scored at much below the normal scoring rate gets doubly penalized. The way to do this is by using the square of the relative strike-rate.

Go back to the example earlier of Batsmen A and B. Their relative strike-rates were 1.2 and 0.9. The square of their relative strike-rates will thus be 1.44 and 0.81. In one stroke, the man who has scored faster than par, gets a higher coefficient (1.44)! , while the man who has scored runs slower, gets a lower coeff! icient ( 0.81).

Thus the number of runs a batsman has scored will be multiplied by the square of the relative strike rate.

The only problem with squaring relative strike-rates is that it reduces the importance of runs scored very drastically. Therefore a new factor is added to the mix: the relative average. Multiplying still further by the relative average rewards the batsmen who have been consistent, since scoring runs is the basic unit of measurement that batsmen must excel at.

For the purposes of calculating the relative average, each Not Out for a batsman was considered as adding 10 runs to his total. The figure of 10 is a rounded one, arrived at after studying when the batsmen remained not out, and how often they did so.

The complete formula for calculating the number of points a batsman has got is thus:
Runs Scored * Relative Average * Relative Strike Rate squared.

For IPL-3, the tournament strike rate ha! s been 126.76, while the tournament average (after accounting for Not Outs as mentioned above) has been 21.29.

It will, of course, come as no surprise to people to see who tops the list of batsmen in IPL-3, but it is still interesting to see who the other men are who make up the list of top batsmen. For the purpose of brevity, only the top-20 batsmen are shown in the list below:

132.28
RankPlayerTeamRunsBallsStri! ke RateBatting Points
1Sac! hin Tend ulkarMumbai618466132.621351.30
2Suresh RainaChennai520364142.861105.07
3Murali VijayChennai458292156.851049.53
4Mahela JayawardenePunjab439298147.321004.66
5Robin UthappaBangalore374218171.56905.52
6Jacques KallisBangalore572494115.79857.42
7Sourav GangulyKolkata493419117.66716.77
8Virender SehwagDelhi356218163.30705.65
9Chris GayleKolkata292184158.70697.40
10Yusuf PathanRajasthan333201165.67673.62
11Saurabh TiwaryMumbai419309135.60644.05
12Kumar SangakkaraPunjab357257138.91599.04
13Kevin PietersenBangalore236157150.32592.31
14Kieron PollardMumbai273147185.71576.00
15Ambati RayuduMumbai356246144.72569.72
16Rohit SharmaDeccan404302133.77560.02
17Andrew SymondsDeccan429341125.81556.95
18Naman OjhaRajasthan377285546.80
19Shane Wat! son Rajasthan185114162.28526.91
20David WarnerDelhi282191147.64476.98

It is instructive to note that even though Jacques Kallis has been the second highest scorer in the IPL, his batting rank is 6. Robin Uthappa, who has scored nearly 200 runs less than Kallis has pipped him because of his fantastic strike-rate. The achievements of Shane Watson and Kevin Pietersen in making the list are also note-worthy, since they both had far fewer inning to play than the others, and had they batted more, would have ended up probably near the top of the table.

Bowling points are relatively harder to fix than batting points, since the bowlers have an inversely proportional relationship between their figures and how well they have done. Thus, a bowler has done better if his strike rate and economy rate are lower. The lower the measures, ! the better the bowler - which is the complete opposite of a batsman, in that while batting the higher the number of runs scored, the strike rate, or the average the better the batsman has done.

Therefore, for bowling a straight multiplication does not work. There are also several more parameters to bowling than batting, with any numbers-based analysis bound to account for wickets taken, economy rate and strike rate.

For wickets taken, the way to assign points is fairly simple - each wicket is worth the tournament average. That is, if across the IPL, the bowlers conceded 3000 runs while taking 100 wickets, each wicket would be worth 30 points. The tournament average for IPL 2010 has been 29.38, making each wicket worth that many points.

The next thing to consider is the strike rate. Just as was done for batting, the relative strike rate is used for bowling, with the relationship inversed.

That is to say, if the tournament's strike rate for bowling has been 20, and Bowler A has picked up 12 wickets in 50 overs bowled, while Bowler B has picked up 15 wickets in 40 overs bowled, their relative strike rates will be as follow:


Bowler A has a strike rate of 25 (300 balls bowled divided by 12 wickets), which would give him a relative strike rate of 0.8 (20 divided by 25), while Bowler B has a strike rate of 16 (240 divided by 15), which would give him a relative strike rate of 1.25 (20 divided by 16). Thus instead of dividing the bowler's individual strike rates by the tournament strike rate, for the Bowling Index, the tournament strike rate! is divided by the individual bowlers' strike rates, thus ensuring that the lower the strike rate of a bowler, the higher the value of his relative strike rate.
The same principle is followed for economy rates, with the tournament average economy rate being divided by the bowlers' individual economy rates to arrive at the relative economy rate. With Twenty20's emphasis on giving as few runs as possible, the relative economy rate is then squared, following the same principle as the batting strike rate.

In IPL 2010, the tournament bowling strike rate has been 22.25, while the tournament economy rate has been 7.92.

The bowler, then, will get his points thus: (No. of Wickets taken * 29.38 * relative strike rate) + (No. of balls bowled * relative economy rate squared).

The relative economy rate is multiplied by the number of balls bowled for two reasons:

a) It ensures that a part-time bowler who might have bowled jus! t 4-5 overs for very few runs does not get an undue advantage ! over a r egular bowler who has bowled a lot more, under more trying and varying conditions,

and

b) It is of a greater credit to a bowler to sustain a given economy rate for a greater number of overs. For example, if Bowler A has bowled 6 overs and conceded 30 runs, his achievement is not as noteworthy as Bowler B who has bowled 15 overs and conceded 75 runs. They both have the same economy rate (5 runs an over), but Bowler B has been better because he has been able to sustain it longer.

However, this formula remains a tad incomplete, because it sometimes unfairly rewards bowlers who might have been very poor with their economy rates, but got to bowl a lot of overs simply because there weren't other bowlers in the team.

To correct this anomaly an additional parameter was added, the idea for which came from Dr. Srinivas Bhogle, who had done a similar ratings exercise. Many ! thanks to him for letting me use it in my analysis.

The correction factor is this: Take the number of balls bowled by a bowler, and based on the tournament economy rate, calculate the number of runs he ought to have conceded if he was bowling at par. Thus if Bowler A has bowled 20 overs (120 balls), he ought to have conceded 160 runs (if the tournament economy rate is rounded to 8 runs an over to simplify the example). Let us call this figure the par-runs conceded. Now take the actual amount of runs that Bowler A has conceded and subtract this figure from his par-runs conceded. Therefore if Bowler A has bowled his 20 overs for just 140 runs, he would get +20 points, while if he has been expensive and conceded 190 runs from his 20 overs, he would get -30 points.

This correction factor goes a large way towards making the Bowling Points more comprehensive. All that remains is to multiply the bowling points of each bowler by a constant, so th! at they are on the same scale as the batting points.

The li st of the top bowlers in IPL 2010 is:

498.07
RankPlayerTeamOversWicketsStrike RateEcon. RateBowling Points
1Pragyan OjhaDeccan58.52116.817.29776.53
2Anil KumbleBangalore63.21722.356.43714.86
3Amit MishraDelhi531718.716.85657.98
4Harbhajan SinghMumbai53.31718.887.05636.38
5R AshwinChennai481322.156.10584.39
6MuralitharanChennai481519.206.85578.70
7Dale SteynBangalore591523.606.88578.36
8Kieron PollardMumbai371514.807.41571.92
9Lasith MalingaMumbai491519.607.02561.67
10Ryan HarrisDeccan30.41413.147.60553.93
11Zaheer KhanMumbai48.21519.337.7! 8
12Vinay KumarBangalore46.11617.318.58495.18
13Doug BollingerChennai311215.506.68492.95
14Andrew SymondsDeccan531226.507.02457.90
15Shadab JakatiChennai381317.547.66451.45
16Irfan PathanPunjab46.21518.539.19413.51
17RP SinghDeccan421418.008.81412.54
18Piyush ChawlaPunjab491224.507.49409.76
19Chaminda VaasDeccan22914.676.32393.60
20Siddharth TrivediRajasthan35.31119.367.32392.31
21Murali KarthikKolkata39926.006.49385.89

The first thing immediately apparent from the table is that spinners have ruled the roost, with all top-6 spots going to them. Dale Steyn is the highest ranked pacer at Number 7, though Ryan Harris and Doug Bollinger could have potentially gotten many more points if they had been available throughout the tournament instead of just in the latter half.

The list included 21 names, because Kolkata's highest ranked bowler - Murali Karthik - makes an appearance at that number. The lack of a strike bowling option for Kolkata has been pointed at before in this article, but it comes out starkly when an analysis is done.
In passing, Anil Kumble showed once again, just what ! India to ok for granted when he was playing, and what they are missing when he's retired, with his outstanding show.

Pragyan Ojha is the deserving table-topper though, and the table above merely reinforces the fact that the selectors erred big time by selecting Piyush Chawla for the T20 World Cup instead of Ojha, Mishra or even R Ashwin.

Now all that remains is for the Batting and Bowling Indexes to be combined, adding the fielding points and arriving at the Most Valuable Player. However, before arriving at the final list, it is worth noting what this analysis does not measure.

The ratings do not take into account any subjective criteria, for instance innings played under pressure. This is because it is impossible to quantify pressure. Is it harder to bat coming in at 20/3 in 3 overs against a Chennai attack or at 34/4 in 7 overs against a Kolkata attack? Similarly for bowling, there is no additional weightage given to performance in power-play overs ! or overs 16-20, simply because in those overs, although batsmen do score more runs, more wickets are also lost, and by contrast in overs 7-16, although runs may be scored at a relatively slower pace, fewer wickets will be lost.

Neither are points awarded for captaincy, since there is no way to judge what percentage of a win has come about by captaincy, or indeed, even whether every captaincy decision that bears fruit or backfires is respectively the result of great/flawed thinking.

The other thing the ratings don't measure at present is the direct hit run-outs. While it would be good to include that, run-outs are sadly not kept track of in any compilation of statistics and to keep a track of which fielders were involved in a run-out, I'd have to make notes during each match - which is practically not possible. The same goes for runs saved while fielding. A Raina or an AB de Villiers will be worth more to their sides than the runs they score simply beca! use of the runs they prevent. But until scoreboards start refl! ecting t he runs saved/conceded alongwith the batting and bowling figures, this is also difficult to incorporate.

With that in mind, the fielding points have been given for catches and stumpings, with each catch/stumping fetching 15 points.

With these points added to the tally that players have accumulated with their batting and bowling, it is now possible to put forth the final list of the Most Valuable Player of IPL 2010.


Rajast han18
RankPlayerTeamBatting Po! intsBowling PointsFielding PointsTotal Points
1Suresh RainaChennai1105.07205.571501460.64
2Sachin TendulkarMumbai1351.300.00451396.30
3Jacques KallisBangalore857.42370.691051333.11
4Kieron PollardMumbai576.00571.92901237.92
5Murali VijayChennai1049.530.001651214.53
6Andrew SymondsDeccan556.95457.901801194.85
7Mahela JayawardenePunjab1004.660.00751079.66
8Robin UthappaBangalore905.520.001501055.52
9Yusuf Pathan673.62212.801351021.42
10Virender SehwagDelhi705.65198.3330933.97
11Irfan PathanPunjab445.45413.5160918.96
12Harbhajan SinghMumbai164.42636.3890890.80
13Pragyan OjhaDeccan0.07776.5360836.59
14Sourav GangulyKolkata716.771.06105822.83
15Christ GayleKolkata697.4091.9830819.37
16Rohit SharmaDeccan560.0279.98135775.00
17Kumar SangakkaraPunjab599.040.00165764.04
Anil KumbleBangalore0.58714.8645760.45
19Shane WatsonRajasthan526.91175.4445747.35
20Kevin PietersenBangalore592.31100.1245737.43


Even though Sachin Tendulkar towered over the others with his supreme batting, the all-round skills of Suresh Raina - who scored less than Tendulkar but whose strike rate was 10 points above that of the Little Master, besides picking up 6 wickets and 10 catches - have pipped the batting skills of Tendulkar, and Raina has emerged as the worthy Most Valuable Player.

It seems only fitting that the MVP should belong to the winning team. Also remember, that though there is no way to quantify pressure, it feels right that the man who has out-performed all others in the biggest match of the IPL (the final), is also t
The table showcases a nice blend of people who have brought multiple skills to the field - such as Kieron Pollard, Jacques Kallis, Andrew Symonds, Robin Uthappa (remember he kept wickets for Bangalore) - and those who have made largely by virtue of a single skill, such as Tendulkar, Mahela Jayawardene, Pragyan Ojha and Anil Kumble.



Is this a final ratings to end all arguments about who was the best player in IPL 2010? Of course not. This is merely a numbers-based guide. But it is a useful tool if you want to settle an argument over who was the better player, since it lets you say, "My! guy has better numbers than your guy!"

Photos courtesy CricBuzz. This article has also been published on CricBuzz in three parts (Part 1, Part 2, Part 3).

setting up equations for given situations

LSU's 2010 Offensive Line and Les Miles Projects

I saw an article that seemed to add a little bit of support to my belief that LSU's Offensive line will be much improved in 2010.  The article, "Chemistry no problem for O-line" by Baton Rouge Morning Advocate sportswriter Gary Laney, prompted me to send Laney an email thanking him for providing some support for those of us that have confidence in this year's offensive line.  Gary Laney responded to my email and while I do not think he would want me to share the entire email, I don't think he will mind me sharing a few lines.  This is part of what Gary Laney wrote in his return email:


"I don't think I quite share your optimism. I'm a big believer in having depth to create competition in camp and I don't see that depth. However, I do like their first six-seven guys (starting five plus T-Bob and Faulk). . . . So if the first 6-7 guys can stay healthy, they could be much better, maybe even pretty good, considering what they are saying about their chemistry. If they have a couple of injuries, they c! ould be in serious trouble.

They need to get where they aren't losing two-three linemen from the program every off-season."

Gary Laney provides a solid conventional assessment of LSU's 2010 o-line that has prompted me to bring into focus exactly what I think about the o-line.

Laney's last point about LSU losing 2 to 3 offensive linemen from the program every off-season is something that I many have been thinking about maybe as early as 2006 when LSU lost Zhamal Thomas, a 6'4" 335lbs. rivals four star recruit, and Phil Loadholt, a 6'9" 345lbs junior college transfer, never managed to make it to the playing field.  In all fairness to coach Miles, both guys made decisions that kept them off of Tiger Stadium's field.  Loadholt after jilting the Tigers went on to have an outstanding career at the University of Oklahoma.  

While all teams lose promising players during the off-season for various reasons, I have wondered if LSU's loss of offensive linemen possibly is the result of a unique problem.  Mind you this is just wild speculation, but I wonder if what an article from And The Valley Shook dubbed the "Les Miles Project" hasn't played a role in some of these more widely recruited offensive linemen leaving LSU without contributing.  The "Les Miles Project" refers to less recruited high school offensive linemen that Miles' or the LSU staff ! sees potential in and gives a scholarship to with developing the OL "diamond in the rough."  

Many will recall that Ciron Black was considered a 3-star recruit by Rivals and played early and finished a fine career at LSU.   Alex Hurst, 6'6" 329lbs., who will start at right tackle this year, was also listed as just a 3-star by Rivals.  Dandy Don Long in his updated depth chart has 6'7" - 324lbs. Josh Williford listed at the number two backup offensive right and left guard.  Williford was also listed as just a 3-star offensive lineman by Rivals. I think it is widely believed that high school offensive linemen are pretty hard to project to the college level. 

 If you look at the lists of centers and offensive guards you will find that many are not nearly big enough to make the transition into major college leagues like the SEC. 

Because of this difficulty in projecting high school offensive linemen's success in college, it appears that Miles and his staff have made at least some commitment to "Les Miles Project" players.  It would not be hard to see how the coaching staff might have to spend some extra time with these project players, maybe see more development in these o-linemen than their already good counterparts, and subconsciously hope that these project players develop and start.  If I were an 18-19 year old kid who was highly recruited to play o-line and experienced this kind of promotion of another player that most had deemed "not as good", I certainly might look to prove myself elsewhere.  Like I said several lines back:  this is no more than "wild speculation." 

Let's look at LSU's o-line this year.

All of LSU's projected starters on the offensive line weigh in at or over 300lbs. with the exception of left guard Josh Dworaczyk who is listed at 295lbs.  Both Joseph Barksdale (LT, 6'6" - 318lbs.) and Will Blackwell (RG, 6'4" - 303lbs.) were projected as "top 20" defensive tackles out of high school because of their mobility.  Both players have a quick first step or two and are great at lateral movement.  In hindsight, Barksdale probably should have been the blindside tackle last year.  This will be the first year for Hurst and Blackwell to start but when these two guys saw action last year LSU's offense looked much better.  Center,  P.J. Lonergan (6'4" - 300lbs) should slow up larger defensive tackles just a little longer than his backup last year's starter T-Bob Hebert (6! '3" - 280lbs.). While both Lonergan and Hebert are good centers, I like the 20lb size advantage that Lonergan provides.

As far as backups go, Gary Laney seems to be happy with Hebert and Offensive Tackle Chris Faulk (6'6" - 316lbs.).  Dandy Don Long has Josh Williford (6'7" - 324lbs) as the backup offensive guard.  And I am hearing that the coaches have been impressed with true freshman OT Evan Washington (6'5"- 315lbs.).  Sophomore, Matt Branch (6'6" - 287lbs.) is also a backup offensive guard.  Branch could also provide backup at offensive tackle if necessary.  Branch was originally recruited as a tight end suggesting that he has probably has good speed and lateral mobility.

I am still more optimistic than Gary Laney but, Laney is admittedly right on two counts:  LSU needs to stop losing offensive linemen during the off-season and LSU needs to develop good backup offensive linemen quickly.    


offensive line hole numbers

Fun Mathematics With Calculator (1)



Calculator can be fun, especially with mathematics.

Here, I have an interesting maths question.

Maths Question:

I would like to display the number 27631 on my calculator. However, I discovered the buttons numbered 7 and 3 cannot response.

How am I to display the desired number?

Show me 2 methods, please. :)
.

logarithm solver

Chocolate Banana Bread



The summer is winding down here in New England.   Though, you would never know it by the weather.  It is hovering somewhere around 90 and will remain so for, at least, the next week.   I am always sad to see summer end, but at the same time, I look forward to fall.  I love the crisp fall days, the beautiful autumn colors of the leaves, and, of course, the fall foods.   Every year my family and I go apple picking at a great place called Apple Crest in New Hampshire.  On the drive there, we get to enjoy the beautiful fall foliage.  Then once there, we take a hayride to the apple trees where we load up our bags with many varieties of apples, cortland, macintosh, macoun, granny smith, delicious, etc.   This place is great.  They have a blue grass! band playing and an area where you can buy freshly made apple cider donuts and homemade pies and jams and pumpkins.  I look forward to this every year and also to the delicious recipes I will make with all of those apples.   For the next few weeks, we drink apple cider laced with cinnamon and bake and eat homemade apple pies and cakes and anything else I can think to stick apples in.  I have a few really great recipes this year that I am very excited to try.


Since I do not have my apples yet, I thought I would share this recipe with you.  I found this recipe in a book called Cakes and Bakes.  I had never seen chocolate banana bread, but it sounded good; so I thought I would give it a try.  

I really enjoyed this.  It is a very moist banana bread with a hint of chocolate and a hint of spice.  It has allspice in it which gives it the spice flavor which I think really compliments the chocolate and banana flavors.   If you are not a fan of a spice flavor, I have made a version that uses vanilla instead.  This one is also very good with more of just a chocolaty banana flavor.  Both are really good.  I cannot figure out which one I like best, though.   

To make this chocolate banana bread, put butter, brown sugar, and eggs in a bowl.  Beat well.

  Add three mashed bananas and mix again. 


 In a separate large bowl, sift together flour, baking soda, cocoa powder, and allspice.

 Add the dry ingredients to the banana mixture gradually and then add  yogurt.  Mix well.  Stir in chocolate chips.  Pour into a greased 9 x 5 x 3 inch loaf pan and bake for one hour.  



Chocolate Banana Loaf adapted from Cakes and Bakes 

1/2 cup of butter, softened
1 1/3 cups of brown sugar
2 eggs
3 bananas
2 cups of flour
1 tablespoon of unsweetened cocoa powder (if making the nonspice version, 1 tablespoon plus 1 teaspoon of unsweetened cocoa powder)
1 teaspoon of allspice (1 teaspoon of vanilla for the nonspice version)
1/3 cup of plain yogurt or sour cream
1 cup of semisweet or milk chocolate chips

Preheat the oven to 350 degrees F (180 degrees C).  Grease a 9 x 13 x 3 inch loaf pan.

Put the butter, sugar, and eggs into the bowl of a mixer and mix well.  Peel and mash the bananas and add to the butter mixture.  Mix well.  Sift the flour, baking soda, cocoa powder, and allspice (or vanilla) into a separate bowl; then add to the banana mixture and mix well.  Add the yogurt and mix well.  Stir in chocolate chips. 

Bake in oven for 1 hour or until a toothpick inserted in the center comes out clean.

how to cut a watermelon into triangles

Fianl Review Answers

Here is a link to the final review with most of the answers.
I have removed the part about the lenses and the eye, so don't worry about them.
Remember dont cram Wednesday night, take chunks of the work and put them together.

grade calculator for finals

LSAT Prep Book Recommendations

Here's the moment you've all been waiting for: my LSAT prep book recommendations.

Happy holidays to everyone. There WILL be more tips next week too, don't worry - not everyone is on vacation. :D Recommendations below. Stay warm!


PrepTests 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, and 56
by LSAC

Each are only sold individually, as LSAC has not yet published a book of ten exams containing them. Because the exam has changed in recent years, you'll need several of these to study effectively.

When to use: after you've completed the other PrepTests.

The Next 10 Actual, Official LSAT PrepTests
by LSAC (older edition)

Contains PrepTests 29-38 and is the newest book of ten. It's essential that you get your hands on these in order to study effectively.

When to use: during exam prep.

10 More Actual, Official LSAT PrepTests
by LSAC (older edition)

Contains PrepTests 19-28.

When to use: during exam prep.

10 Actual Official LSAT PrepTests
< br />by LSAC (older edition)

Contains most PrepTests from 7-18. Only worth doing if you're studying far enough in advance that you'll have enough time to do the most recent exams as well.

Note: These exams are really old - from 12/92 - 9/95. Don't be concerned if some of the games are a bit difficult. You'll rarely see these types on recent exams.

When to use (if at all): in early stages of preparation to familiarize yourself with the exam.

The Official LSAT SuperPrep
by LSAC (older edition)

Contains a few exams you can't find anywhere else: 2/96, 2/99, and 2/00. The explanations within are the biggest selling point, but most people find them to be confusing and technical.

When to use (if at all): in early stages of preparation.


June 2007 LSAT exam (PDF)
by LSAC

Free sample exam. Treat it as if it were PrepTest 52.5 when making your study schedule.

LSAT Logic Games Bible (2003)
by Powerscore (2008)

This book contains the best Logic Games diagramming techniques I've seen, and I've reviewed all the LSAT prep books out there. The drills are useful, the organization is clear, and the book demonstrates its techniques on real LSAT PrepTests.

Skip the section on "Pattern Games" and "The Forgotten Few" unless you've already mastered other game types. Also, don't worry too much about the book's complicated subclassifications. You'll be fine if you can distinguish between the main game-types: linear/sequencing, grouping, and combination.

Unless you have a lot of time, I recommend the 2003 edition. Why? Because the 2008 edition is nearly twice the size. It appears the author beefed it up to justify the $65 retail price tag. Also, the 2008 edition exposes you to recent games you'll want to save for later practice tests.

When to use: Before you attempt logic games from the books of PrepTests.

Logic Made Easy: How to Know When Language Deceives You
by Deborah Bennett (older edition)

Although not explicitly written for test-prep purposes, this book contains several logical reasoning-type questions and reviews several common fallacies. The author is clearly familiar with the LSAT, and this makes the book more relevant for our purposes. I highly recommend reading this because it is clear, full of simple examples, and concise. You can skip the parts on the history of logic.

American Scientist's review.
When to read: Before you begin LSAT prep or when you need! a break from practice exams.

Informal Logic: A Pragmatic Approach

by Douglas N. Walton (older edition)

Clearly explains and demonstrate multiple examples of valid and invalid arguments. Walton is obsessed with logical fallacies and covers many of the common ones appearing on the LSAT.

When to read: Before you begin studying or when you need! a break.

Elementary Logic: Revised Edition
by William V. Quine

At 144 pages, it's short and sweet. It's also the first-ever logic textbook (originally published 1941, revised 1980). It discusses many basic issues (necessary/sufficient, etc.) relevant to LSAT logic. If you have the time/inclination, feel free to look it up, but it's by no means necessary.

When to read: Before you begin studying or when you need a break.

How to Solve It: A New Aspect of Mathematical Method
by George Polya (Older editions)

Simple advice on problem solving and logical thinking. It's useful because it gives you a framework to identify and analyze the relationship between evidence and conclusion. Wikipedia, this summary, and the following will probably be enough for you.

The book gives you some questions to ask yourself about any Logic Game or Logical Reasoning Stimulus:

1. What information is unknown/provided? Does the evidence/premise satisfy the conclusion?
2. How is this game/stimulus similar to others you've done? Questions do tend to come back in future exams (with different topics, of course).
3. ! Does a restatement (the contrapositive) of the argument help?
4. What inferences can you make?
5. How can you use these inferences?

Another nice summary.

When to read it: Before you begin studying or when you need a break.

The Little Luxe Book of Sudoku: 335 Easy to Hard Puzzles and The Little Black Book of Sudoku: 400 Puzzles
by Will Shortz

Number puzzles exercise your brain and get it ready for the logic games.

When to use: Before you begin studying or when you need a break.

T! hat's it - see you next year!

---------

! Next wee k: How to study for a retake (or what to do when you've already used too many PrepTests)...
Continue Reading...»


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Positive and Negative Triangles

After the excitement of last week's conference, it is good to turn back to our usual dull and LENGTHY ploddings, where you can just double-click away from me if I am boring you. But I ought to note something about it, since I was there, and I had a good time, even though it was truncated somewhat for me, due to matters beyond my control.

I saw several old friends, and met several new ones, and it was an awesome time. I laughed a lot, had some beer, and some food, and I think I might have also slept, but I forget. Not that it matters, hee hee. I think some people were surprised to learn that there really is a "Dr. Thursday" and he is not just a pen name of someone else.

The one talk which our esteemed blogg-mistress did not mention in her commentary was (in my own opinion) the best. It also happened to be the one SHE gave! It was titled "The Woman Who Was Chesterton" and (as she remarked) perhaps it sounds as if it was going to be some sort of "gender ! studies" approach to GKC's writing, his "inner female" or some such. Here, she could have quoted the very famous lines from GKC's letter to - er - to someone else. (I'll tell you who a bit later.) The lines I shall quote will earn you swift and immediate condemnation in the modern world, though the great ranks of the Scholars of the Middle Ages will welcome you among their number, since the lines are indubitably true:
I like the Cyclostyle ink; it is so inky. I do not think there is anyone who takes quite such a fierce pleasure in things being themselves as I do. The startling wetness of water excites and intoxicates me: the fieriness of fire, the steeliness of steel, the unutterable muddiness of mud. It is just the same with people.... When we call a man "manly" or a woman "womanly" we touch the deepest philosophy.
[GKC writing to (someone) quoted in Ward Gilbert Keith Chesterton 108-9]
Very impressive. Anyway, the talk discussed the lif! e of a certain person about whom we as Chestertonians ought to! be inte rested in. I didn't take notes, as I was too entranced to do such mundane things, and I knew there would be a recording. Besides, it was scattered with most delightful humour, suggesting how Chesterton would handle life in the INTERNET age - I especially liked the bit that went something like this:
"I say! Shaw has accepted my FRIEND request!"
But anyway, there was one particular pun which was left out. And you can find that pun here, but it may be made more clear - that is, the real topic of that talk will be revealed if I say it in this fashion:
There was one thing in particular in which GKC anticipated our modern "connected" electronic age. It was this: Long before the INTERNET came to be, G. K. Chesterton got his very own Blogg on June 28, 1901.
Ah well... if you are still confused I will spell it out in ASCII for you: That was the day on which Gilbert Chesterton married Frances ! Blogg. (Yes, that really was Mrs. Chesterton's maiden name, and she was the topic of Nancy's excellent talk: she was the Woman Whe Was Chesterton.)

As it happens, just before the conference I was looking into a very interesting puzzle, one which has tormented computer science for some time... but I won't go into that just now, since it may irritate some of my readers, and unduly attract attention from - er - various government agencies. Not that I have any insights, of course! Indeed, all I had was a new question. And from that question I was led to study some very curious things, some of which almost do not make sense until you poke around a little and try to understand why the words are used in that way. It's far more magical than any magic - in fact, it's precisely the true difference between magic and technology, the difference which poor Arthur C. Clarke happened to miss. But I cannot lecture on that matter just now; besides I've already put it into a story,! and it's much better there. So let us proceed.

Jus! t yester day (or maybe Tuesday) I found out that a triangle can be "positive" or "negative". This sounds hilarious, and perhaps not very Chestertonian, until you recall that Gabriel Gale asked:
"Were you ever an isosceles triangle?"
in "The Yellow Bird" in GKC's The Poet and the Lunatics. In fact, you can find quite a bit of homage to Euclid and triangles in Chesterton - and they often lead to even more amazing truths. For example:
There is one element always to be remarked in the true mystic, however disputed his symbolism, and that is its brightness of colour and clearness of shape. I mean that we may be doubtful about the significance of a triangle or the precise lesson conveyed by a crimson cow. But in the work of a real mystic the triangle is a hard mathematical triangle not to be mistaken for a cone or a polygon. The cow is in colour a rich incurable crimson, and in shape unquestionably a cow, not to be mistaken for any of its evolution! ary relatives, such as the buffalo or the bison. This can be seen very clearly, for instance, in the Christian art of illumination as practiced at its best in the thirteenth and fourteenth centuries. The Christian decorators, being true mystics, were chiefly concerned to maintain the reality of objects. For the highest dogma of the spiritual is to affirm the material.
[GKC William Blake 132ff]
Ah! Read it again: "The highest dogma of the spiritual is to affirm the material." It's simple, too: you cannot feed the hungry or clothe the naked by theology. It requires knowledge of cooking and sewing, of agriculture and textiles, but it also means CHEMISTRY and BIOLOGY and all sorts of theoretical and practical disciplines. But then we already knew that: "It is wrong to fiddle while Rome is burning; but it is quite right to study the theory of hydraulics while Rome is burning." [GKC WWWTW CW4:43]

Ahem. To revert to the positive and negative tri! angle.

The idea is quite simple, and in fact links ! in to a very great concept - the idea of "chirality" or "handedness" - the idea of RIGHT and of LEFT. When we "name" a triangle, that is, we go out onto our lands with our surveying tools, our transits and chains and plumb bobs, and we select (much as the Roman augurs would) the three points which are the three "GONs" - the angles or corners - why, depending on the ORDER IN WHICH we choose those three points, we give that triangle either its positive or its negative state. The Romans, of course would label it fas or nefas - lucky or unlucky. But this is a simpler idea, even if there is still something sinister about it! (Latin pun, hee hee) I won't give the equation here, but there is a way of computing the area of a triangle from the coordinates of its three corners, and the FUN thing about this equation is the SIGN of the area tells you whether you went around the triangle in a clockwise or counterclockwise direction.

Ah, you sigh. So that's what the Do! ctor is ranting about today. Directions. Clockwise and counterclockwise. Right and Left.

Yes. We could always quote St. Matthew about right and left - you know, the Last Judgement, the sheep and the goats - but you may also recall this famous snippet of dialog from Chesterton:
"First of all, what is it really all about? What is it you object to? You want to abolish government?"

"To abolish God!" said Gregory, opening the eyes of a fanatic. "We do not only want to upset a few despotisms and police regulations; that sort of anarchism does exist, but it is a mere branch of the Nonconformists. We dig deeper and we blow you higher. We wish to deny all those arbitrary distinctions of vice and virtue, honour and treachery, upon which mere rebels base themselves. The silly sentimentalists of the French Revolution talked of the Rights of Man! We hate Rights as we hate Wrongs. We have abolished Right and Wrong."
"And Right and Left," said Syme w! ith a simple eagerness, "I hope you will abolish them too. The! y are mu ch more troublesome to me."
[GKC The Man Who Was Thursday CW6:490]
Yes, and the funny thing is that right and wrong - I mean right and left really are a matter of life and death, not simply at the end of time, but even in our daily lives. You may wonder (if you know any Latin at all) why there is a sugar called DEXTROSE and another called LEVULOSE. (The Latin dexter means "right" and laevus means "left".) And the secret of all this was discovered only 26 years before GKC was born.

I am sure you know the name Louis Pasteur. The first of his astounding discoveries was made in 1848 when he was studying certain organic salts called the tartrates. (An aside: if you are a baker (like me) you may have something called "Cream of Tartar" in your pantry - it is NOT the same as the "Tartar sauce" used on fish, but a fine white powder. The tartrates are compounds of tartaric acid, a weak acid found in certain fruits. It is used with ba! king soda as a leavening agent.) Anyway, Pasteur established that a given tartrate came in TWO DIFFERENT FORMS. They are made up of the exact same elements, in exactly the same proportions, and many of their properties are identical.

BUT NOT ALL OF THEM ARE IDENTICAL.

Specifically, the property which Pasteur studied was NOT identical: the rotation of polarized light: one form went right, another form went left, and there was one which didn't have any effect.

That is because they are related as your right hand is related to your left hand: they are MIRROR IMAGES of each other. They are "chiral" (from the Greek word for "hand") because they have "handedness". (The one which had no effect was an equal mixture of the right and left forms.)

As it turns out, just about ALL the compounds found in living things are chiral. Most importantly, the various amino acids which build proteins, and the various sugars which form the most useful! of our body's energy sources.

You may be wondering! what al l this has to do with my moaning and berating and all that. It's simply my attempt to point out how even the deep and hidden truths of our real world bolster the greater, deeper and even more hidden truths about God and our relation to Him. It's not enough for us to sit and listen to lectures, or sit and read bloggs, even this one. Here is Chesterton's own admonition about it:
I do not know Mr. Eustace Miles personally, but I must confess that I like him: he seems to me to be sincere, and much simpler as well as much saner than many of his followers. But he is chiefly in danger rather from his leaders than his followers. He allows himself to be lectured by a lot of Pundits who suppose they have a true explanation of life when they have only got a false simplification of it. I remember a man of this sort who told me he was on a spiritual plane ("we are on different planes") on which yes and no, black and white, right and wrong, right and left, were all equal. I reg! arded him as I should any boastful aviator who told me that from the height to which he had risen all London looked like an exact chess-board, with all the squares and streets the same size. In short, I regarded him as a liar. London streets are not equally long, seen from a flying-ship or from anywhere else. And human sins or sorrows are not equally serious, seen in a vision or anywhere else.
[GKC Aug 15 1914 CW30:145]
Indeed. Don't be caught by a false simplification. At the end of time, we're going to see that right and left really are different - and a number of other things, too. As GKC said about male and female, what God has put asunder, let no man join. [see "Two Stubborn Pieces of Iron" in The Common Man]

fact triangles

Simplifying Polynomial Expression

Algebra Scholars,

Chapter 10 brings us Polynomials. A skill that must be fine tuned is simplifying expressions. Please note the first picture on the left. This is what simplifying polynomial expressions looks like.

The second picture shows the extended distributive property. Remember, it is just like the regular distributive property, except, distribute all terms to all terms in both sums.

Good luck!


expression simplifying calculator

Video: BBC Weatherman Caught Giving The Middle Finger On Live TV

A funny end of the day post via HotAir headlines:

double middle finger text

Grade 7 Math Curriculum

7th Grade Annual Curriculum Plan with Activities



Day of Instruction Performance Indicator Description Technology Oriented Activity
1 7.N.1 Distinguish between the various subsets of real numbers (counting/natural numbers, whole numbers, integers, rational numbers, and irrational numbers) Comparing Numbers
http://321know.com/g7_41gx1.htm
2 http://www.emsc.nysed.gov/ciai/mst/math/standards/images/Image86.gif
7.N.2
Recognize the difference between rational and irrational numbers (e.g., explore different approximations of) Number Practice Game
http://www.softschools.com/quiz_time/math/arithmetic/theme2.html
3 7.N.3 Place rational and irrational numbers (approximations) on a number line and justify the placement of the Placing numbers on a  number line
http://www.mathsframe.co.uk/placenumbers.swf
4 7.N.17 Classify irrational numbers as non-repeating/non-terminating decimals Irrational numbers
http://en.wikipedia.org/wiki/Irrational_number
5 7.S.1  Identify and collect data using a variety of methods Qualitative data collection
http://people.uwec.edu/piercech/ResearchMethods/Data%20collection%20methods/DATA%20COLLECTION%20METHODS.htm
6 7.S.1  Identify and collect data using a variety of methods Primary data collection methods
http://brent.tvu.ac.uk/dissguide/hm1u3/hm1u3text3.htm
7 7.S.1  Identify and collect data using a variety of methods
8 7.S.4 Calculate the range for a given set of data Statistical Range for a set
http://321know.com/g7_518x3.htm
9 7.S.5 Select the appropriate measure of central tendency Basic statistical mean
http://321know.com/sta418x5.htm
10 7.N.13 Add and subtract two integers (with and without the use of a number line) Integer lesson
http://www.mathgoodies.com/lessons/vol5/intro_integers.html
11 7.N.13 Add and subtract two integers (with and without the use of a number line) Integers Quiz
http://www.softschools.com/quiz_time/math/arithmetic/theme2.html
12 7.N.13 Add and subtract two integers (with and without the use of a number line) Subtracting Number ball game
http://www.sheppardsoftware.com/mathgames/Numberballs_subtraction/numberballsSubtraction.htm
13 7.N.12 Add, subtract, multiply, and divide integers Adding integers
http://www.mathgoodies.com/lessons/vol5/addition.html
14 7.N.12 Add, subtract, multiply, and divide integers Subtracting integers
http://www.mathgoodies.com/lessons/vol5/subtraction.html
15 7.N.12 Add, subtract, multiply, and divide integers Multiplying integers
http://321know.com/g7_310mx.htm
16 7.N.12 Add, subtract, multiply, and divide integers Dividing integers
http://321know.com/g7_55_di.htm
17 7.N.12 Add, subtract, multiply, and divide integers Math Mah Jong game
http://www.sheppardsoftware.com/mathgames/mahjongMath.html
18 TEST
19 7.N.8 Find the common factors and greatest common factor of two or more numbers Factorize game
http://www.shodor.org/interactivate/activities/FactorizeTwo/
20 7.N.9 Determine multiples and least common multiple of two or more numbers Least common multiple calculator
http://wims.unice.fr/wims/wims.cgi?module=tool/popup.en&search=lcm
21 7.N.10 Determine the prime factorization of a given number and write in exponential form Factorization in exponential form
http://www.eduplace.com/math/mathsteps/5/b/index.html
22 7.N.11 Simplify expressions using order of operations (Note: Expressions may include absolute value and/or integral exponents greater than 0.) Order of Operations game
http://www.shodor.org/interactivate/activities/OrderOfOperationsFou/
Calculating using order of operations
http://321know.com/pro73cx0.htm
23 7.N.14 Develop a conceptual understanding of negative and zero exponents with a base of ten and relate to fractions and decimals (e.g., 10-2 = .01 = 1/100) Evaluating exponents of negaive numbers
http://321know.com/exp-int-eval-exp.htm
24 7.A.2 Add and subtract monomials with exponents of one Evaluating exponents
http://321know.com/exp-eval-exp.htm
25 7.A.2 Add and subtract monomials with exponents of one Arithemetic Four game
http://www.shodor.org/interactivate/activities/ArithmeticFour/
26 7.A.2 Add and subtract monomials with exponents of one Math game
http://www.sheppardsoftware.com/mathgames/arithmetic/arithmetic.htm
27 7.N.4 Develop the laws of exponents for multiplication and division Exponent Quiz Game
http://www.softschools.com/quiz_time/math/exponents/theme6.html
28 7.N.4 Develop the laws of exponents for multiplication and division Multiplication game
http://www.softschools.com/quiz_time/math/properties/theme50.html
29 7.N.4 Develop the laws of exponents for multiplication and division
30 7.N.15 Recognize and state the value of the square root of a perfect square (up to 225) Square root video
http://www.mathplayground.com/mv_square_root.html
31 7.N.16 Determine the square root of non-perfect squares using a calculator Square root game
http://www.softschools.com/math/games/squareroot_practice.jsp
32 7.N.18 Identify the two consecutive whole numbers between which the square root of a non-perfect square whole number less than 225 lies (with and without the use of a number line)
33 7.N.5 Write numbers in scientific notation Scientific notation calculator
http://www.calculatorsoup.com/calculators/math/scientificnotation.php
34 7.N.6 Translate numbers from scientific notation into standard form Converting from scientific notation
http://321know.com/nam-g6_71gx1.htm
35 7.N.7 Compare numbers written in scientific notation Converting to scientific notation
http://321know.com/nam-g6_71fx1.htm
36 7.A.1 Translate two-step verbal expressions into algebraic expressions  Algebra Quiz
http://www.softschools.com/math/games/algebra_practice.jsp
37 7.A.1 Translate two-step verbal expressions into algebraic expressions  Two variable expressions
http://321know.com/equ723x3.htm
38 7.A.1 Translate two-step verbal expressions into algebraic expressions  Algebra Number Ball Game
http://www.sheppardsoftware.com/mathgames/Numberballs_algebra_I/numberballsAlgebraI.htm
39 7.A.1 Translate two-step verbal expressions into algebraic expressions 
40 TEST
41 7.A.3 Identify a polynomial as an algebraic expression containing one or more terms Algebra II ball game
http://www.sheppardsoftware.com/mathgames/Numberballs_algebra_II/numberballsAlgebraII.htm
42 7.A.3 Identify a polynomial as an algebraic expression containing one or more terms
43 7.A.4 Solve multi-step equations by combining like terms, using the distributive property, or moving variables to one side of the equation Make 24 game
http://www.sheppardsoftware.com/mathgames/make24/make24.htm
44 7.A.4 Solve multi-step equations by combining like terms, using the distributive property, or moving variables to one side of the equation Expressions with two variables
http://321know.com/equ723x3.htm
45 7.A.4 Solve multi-step equations by combining like terms, using the distributive property, or moving variables to one side of the equation
46 7.A.4 Solve multi-step equations by combining like terms, using the distributive property, or moving variables to one side of the equation
47 7.A.4 Solve multi-step equations by combining like terms, using the distributive property, or moving variables to one side of the equation
48 7.A.7 Draw the graphic representation of a pattern from an equation or from a table of data Pattern game
http://www.shodor.org/interactivate/activities/PatternGenerator/
49 7.A.7 Draw the graphic representation of a pattern from an equation or from a table of data Pascals triangle game
http://www.shodor.org/interactivate/activities/ColoringMultiples/
50 7.A.7 Draw the graphic representation of a pattern from an equation or from a table of data
51 7.A.7 Draw the graphic representation of a pattern from an equation or from a table of data
52 7.S.6 Read and interpret data represented graphically (pictograph, bar graph, histogram, line graph, double line/bar graphs or circle graph) Graphing activity
http://www.shodor.org/interactivate/activities/Sequencer/
53 7.S.6 Read and interpret data represented graphically (pictograph, bar graph, histogram, line graph, double line/bar graphs or circle graph) Bar Graph tool
http://www.shodor.org/interactivate/activities/BarGraph/
54 TEST
55 7.A.8 Create algebraic patterns using charts/tables, graphs, equations, and expressions
56 7.A.8 Create algebraic patterns using charts/tables, graphs, equations, and expressions
57 7.A.8 Create algebraic patterns using charts/tables, graphs, equations, and expressions
58 7.A.8 Create algebraic patterns using charts/tables, graphs, equations, and expressions
59 7.A.10 Write an equation to represent a function from a table of values Two variable function pump game
http://www.shodor.org/interactivate/activities/TwoVariableFunction/
60 7.A.10 Write an equation to represent a function from a table of values Data flyer game
http://www.shodor.org/interactivate/activities/DataFlyer/
61 7.A.10 Write an equation to represent a function from a table of values
62 7.G.10 Graph the solution set of an inequality (positive coefficients only) on a number line (See 7.A.5) Solving Inequality video
http://www.mathplayground.com/howto_InequalitiesA.html
63 7.G.10 Graph the solution set of an inequality (positive coefficients only) on a number line (See 7.A.5)
64 7.G.10 Graph the solution set of an inequality (positive coefficients only) on a number line (See 7.A.5)
65 7.M.4 Draw central angles in a given circle using a protractor (circle graphs) Circle crossword puzzle
http://www.mathgoodies.com/puzzles/crosswords/icircle2.html
66 7.M.4 Draw central angles in a given circle using a protractor (circle graphs) Protractor video
http://www.mathplayground.com/mv_using_protractor.html
67 7.M.4 Draw central angles in a given circle using a protractor (circle graphs) Circle graph tool
http://www.shodor.org/interactivate/activities/CircleGraph/
68 7.A.5 Solve one-step inequalities (positive coefficients only) (See 7.G.10) Soving inequalities
http://321know.com/equ725x7.htm
69 7.A.5 Solve one-step inequalities (positive coefficients only) (See 7.G.10)
70 7.A.5 TEST
71 7.G.10 Graph the solution set of an inequality (positive coefficients only) on a number line (See 7.A.5) Graphing linear inequalities
http://www.purplemath.com/modules/syslneq.htm
72 7.G.10 Graph the solution set of an inequality (positive coefficients only) on a number line (See 7.A.5)
73 7.G.10 Graph the solution set of an inequality (positive coefficients only) on a number line (See 7.A.5)
74 7.S.2  Display data in a circle graph Interactive circle word search
http://www.mathgoodies.com/puzzles/wordsearch/icircle_ws.html
75 7.S.2  Display data in a circle graph Circumference video
http://www.mathplayground.com/mv_circumference.html
76 7.S.2  Display data in a circle graph Circle graph tool
http://www.shodor.org/interactivate/activities/CircleGraph/
77 7.S.3 Convert raw data into double bar graphs and double line graphs Bar Graph tool
http://www.shodor.org/interactivate/activities/BarGraph/
78 7.S.3 Convert raw data into double bar graphs and double line graphs Multi bar graph tool
http://www.shodor.org/interactivate/activities/MultiBarGraph/
79 7.S.3 Convert raw data into double bar graphs and double line graphs
80 7.G.1 Calculate the radius or diameter, given the circumference or area of a circle Area of Circle video
http://www.mathplayground.com/mv_area_circles.html
81 7.G.1 Calculate the radius or diameter, given the circumference or area of a circle Circumference of a circle
http://321know.com/g7_612x7.htm
82 TEST
83 7.G.2 Calculate the volume of prisms and cylinders, using a given formula and a calculator Volume of prism video
http://www.mathplayground.com/mv_volume_prisms.html
84 7.G.2 Calculate the volume of prisms and cylinders, using a given formula and a calculator Polygon Video
http://www.thefutureschannel.com/dockets/hands-on_math/inventing_with_polygons/index.php
85 7.G.2 Calculate the volume of prisms and cylinders, using a given formula and a calculator Volume of a cylinder
http://321know.com/exp79_x5.htm
86 7.G.2 Calculate the volume of prisms and cylinders, using a given formula and a calculator Volume rectangular prism
http://321know.com/g79_vox6.htm
87 7.M.2 Convert capacities and volumes within a given system Volume triangular prism
http://321know.com/g79_vox1.htm
88 7.M.2 Convert capacities and volumes within a given system Volume sphere
http://321know.com/g79_vox7.htm
89 7.M.2 Convert capacities and volumes within a given system Volume pyramid
http://321know.com/g79_vox5.htm
90 7.G.3 Identify the two-dimensional shapes that make up the faces and bases of three-dimensional shapes (prisms, cylinders, cones, and pyramids) Interactive crossword puzzle - easy
http://www.mathgoodies.com/puzzles/crosswords/icircle1.html
91 7.G.3 Identify the two-dimensional shapes that make up the faces and bases of three-dimensional shapes (prisms, cylinders, cones, and pyramids) Shape inlay game
http://www.mathplayground.com/shape_inlay.html
92 7.G.3 Identify the two-dimensional shapes that make up the faces and bases of three-dimensional shapes (prisms, cylinders, cones, and pyramids) Volume of cones
http://www.mathplayground.com/mv_volume_cones.html
93 7.G.3 Identify the two-dimensional shapes that make up the faces and bases of three-dimensional shapes (prisms, cylinders, cones, and pyramids) Shape Explorer game
http://www.shodor.org/interactivate/activities/ShapeExplorer/
94 7.A.6 Evaluate formulas for given input values (surface area, rate, and density problems) Surface area of a cube
http://321know.com/exp79_x2.htm#section2
95 7.A.6 Evaluate formulas for given input values (surface area, rate, and density problems) Density solver
http://www.sartep.com/chem/chartsandtools/densitysolver.cfm
96 7.A.6 Evaluate formulas for given input values (surface area, rate, and density problems) Surface are of a prism
http://321know.com/g79_sux3.htm
97 7.G.4 Determine the surface area of prisms and cylinders, using a calculator and a variety of methods surface area of cylinder
http://321know.com/g79_sux2.htm
98 7.G.4 Determine the surface area of prisms and cylinders, using a calculator and a variety of methods Surface Area game
http://www.shodor.org/interactivate/activities/SurfaceAreaAndVolume/
99 7.G.4 Determine the surface area of prisms and cylinders, using a calculator and a variety of methods Surface area calulator - online
http://www.csgnetwork.com/surfareacalc.html
100 7.G.4 Determine the surface area of prisms and cylinders, using a calculator and a variety of methods
101 7.M.11 Estimate surface area Estimator quiz
http://www.shodor.org/interactivate/activities/EstimatorQuiz/
102