I will try to color-code our blog to make it easier for you to find the pertinent information about your class. Homework assignments will be coded in pink regardless of the class.

It was great to see you all in class today.We were pretty busy in all three courses:

AP Stat- Distributed textbooks, took a pre-test that showed the nature of AP Statistics questions. HW: replace batteries in your calculator and bring it to class on Thursday.

Adv Alg Support - We worked through the content related to review problems included in your Adv Alg course homework. HW: Finish the homework for Thursday for your math class. Bring questions tomorrow!

AP Comp Sci - We talked about the content of the class, saw a 9 minute video about the need for programming, and completed a quick survey. And we got another girl to join the class! Yeah! HW: Procure a flash drive (4 Gigabytes or more) to use for class. Start reading through the documents on the class wiki page at** lassiterprogrammers.wikispaces.com**.

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Friday, August 9

We did 6 labs in AP Stat today. The photos of the results follow. If your poster does not appear in your class document, then use the corresponding poster from another class to depict your results. There should be one that's pretty close to what your class reported.

Download FirstPerLabs2013

Download SecondPerLabs2013

Download ThirdPerLabs2013

Download FifthPerLabs2013

Download SixthPerLabs2013

AP STAT HW: Please print up an image of your data and attach it to the analysis of you finish up this weekend. It would be helpful for you to print up thumbnail copies of the other labs to use in your notes on Monday. Your presentations on Monday will include your findings about the nature of the relationship between the two variables of interest. Is it linear? How do you know? Could you predict the value of the second variable if you knew the value of the first? Keep going. . .

Computer Science--Were you able to compose general formulas for converting random numbers on [0,1) to random integers between a lower bound and an upper bound? You should have found a way to convert these numbers using the Round function and also the Int or the Trunc function. Are you also able to use a ceiling or a floor function to find the same results?

Some logic for you: you need to expand the original (stretch) the original numbers into a range of numbers as long as the count of possible integers you want in your answer set. For instance, if the random integers need to be between 4 and 6 inclusive, you need the stretched range to be three units long. Then you have to shift the results so they round or truncate properly.

Computer Science HW: FInish these formulas and test them using Excel. BriRead the remainder of the Karel the Robot selection, and bring your journal/notebook to class on Monday.

Algebra support-- We're working on graphing equations on the coordinate plane. Please practice!

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August 13, 2013

AP Stat-We've been working through the six labs from Friday and extending our understanding of independence and simulation. We saw that a highly-unlikely outcome was evidence that the hypothesis or model was wrong. As an example, here the results from the distracted driving simulation today. As you can see, the outcome of 7 out of 9 is not too terribly unlikely, so we do not have strong evidence that cell phones are a greater distraction than a passenger.

Here's a link to an article about the original research. http://www.unews.utah.edu/old/p/112608-2.html

Congratulations on answering the questions from previous AP Exams. Just think about how much you can learn in a whole school year if you've already learned to answer the simulation questions in just 5 days!

Computer Science - Whoo hoo! We wrote a macro today!!!! Our goal was to write a "follow me" macro in Excel, then modify it to make the program run a specified number of times. As is the case with most programming, we also learned a little debugging along the way. Let's incorporate graphing tomorrow.

Please bring your flashdrive to class every day.

Math support: We reviewed (worked problems) in preparation for the quiz. Your quiz on Weenesday covers solving systems of equations. Please complete the worksheets that you received in your math class and the one from support. These are good review for the quiz.

Download Systems of Equations Quiz Review 2013 - 2

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AP Statistics - You can access the Fathom files to play with the data or to collect the values you need for the graphing assignment. http://go.keycurriculum.com/fathom_trial.html

HW: Graph the data from class in a histogram, a stem and leaf plot, and an ogive. Also, work problems 1.8, 1.9, and 1.14.

Here are the files of today's data.

Download 1st period Pasta1

Download 2nd period Pasta2

Download 3rd period Pasta3

Here is a .pdf file that has the graphs we used to summarize the data (the frequencies of each number).

Download Pasta Lab 1 periods 1-3 Remember to use L1 for the counts and L2 for the frequencies when you do your graphs on the calculator. You will have to change the frequencies list back to "1" when you do the homework problems from the textbook because they are not formatted in summary form.

AP Computer Science - Java will be here soon! Today we saw that the Greenfoot software has been loaded on the computers. It won't be long before we're doing the Java programming. In the meantime, please continue improving the macro that we've been working on in class. Write down all the new code that works. There will be similar codes in Java that may be useful on your assignments.

Adv Algebra Support - We repeated today's lesson from the regular class today, and we went a little further. Be the smartest person in your class tomorrow!

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August 19, 2013

AP Statistics

Finish the previously-assigned HW problems 1.8, 1.9, 1.11, 1.14

1.5, 1.17, 1.28, 1.33

AP Computer Science

Open the Portable Eclipse program on your flashdrive and load it onto your flash drive while you are at home.

Adv Algebra Support

Here's a copy of the summary worksheet we used to complete the Central HIgh Booster task

Download Central High Booster worksheet

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AP Statistics

Notes from today's class: Download Notes

CHAPTER 1 TEST ON FRIDAY!!!!!

HW Due Wednesday: 1.39, 1.40, 1.42, and 1.45

AP Computer Science

Bring your flash drives!!!! You need access to the programs on the drives.

If you are more comfortable with Eclipse than NetBeans, then you may use Eclipse for classwork.

When you get to class on Wednesday, please log in to the IDE and be prepared to modify your Hello World program.

Advanced Algebra Support

Finish the worksheets related to matrix applications.

Here are the notes from today's lesson in review for tomorrow's quiz: Download Matrix algebra notes

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August 21, 2013

AP Statistics - We will complete the packet of Free Response questions in class on Thursday in review for the test on Friday- problems from the text, 1.53, 1.54, 1.60, 1.66

AP Computer Science - BRING THE FLASHDRIVE TO CLASS EVERY DAY!

Adv Alg Support - You sounded quite confident about the quiz. Let's keep it up! Here are the notes from class that support the Walk Like a Mathematician task: Download Matrix algebra II

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AP Statistics - Test tomorrow!!!!

Download Chapter 1 Goals

AP Computer Science - Completing the Hello, Income Tax Calculator, and Temperature Converter Debugging activities. Get checked off for a project and you can move to the next.

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AP Statistics - We've moved to Chapter 2

Goals: Express individual values from a distribution in terms of relative position ( z-score or percentile).

Use Chebyshev's Theorem to find the minimum % of a distribution that lies within k standard deviations of the mean of the distribution - 100 * (1-1/k^{2}).

Describe the characteristics of a density curve. Be able to identify the median, Q1, and Q3 and estimate the mean.

Demonstrate understanding of the Normal distribution by estimating and computing areas/probabilities between values and by assessing the normality of a set of data. Be able to find the value from a Normal distribution which represents a given percentile if you know the mean and standard deviation.

HW Due 8/28: Problems 2.2, 2.3, 2.26, 2.34, and parts A and B from Problem #3 on the 2003 exam (handed out in class or you can get it from the AP Central website). Read the section on using the Standard Normal Table (Table A) and practice a bit.

AP Comp Sci - See if you can finish up the "challenge" problems in the next day or so. We will be moving on th Karel!!!

Adv Algebra - notes from class are posted on Mrs. Leonard's blog for your review. Please use them. You have a test in Adv Alg on Friday. Let's get prepared early. Bring your work to class every day.

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**Wednesday, August 28**

AP Statistics - We learned how to use the Normal Probability Plot to determine whether a set of data might have come from a Normal distribution. If the points form a straight diagonal set of points, then the data may have come from a Normal distribution. If the dots in the plot look like a curve, then there is evidence that the underlying data are not Normal.

We use the normalcdf function in the calculator when we have endpoints of a region under the Normal curve and we want to find the area between them. We convert the endpoints into z-scores and use the format **normalcdf(lowerzvalue,upperzvalue).** If your calculator prompts you for mean and standard deviation, leave them at 0 and 1 respectively.

We use the invNorm function to find the z-score that matches a particular percentile. If we wanted the z-score that matched the 30th percentile we would enter **invNorm(.3).** The result, -.5244, means that a value .5244 standard deviations below the mean has 30% of the population to the left and 70% to the right. Naturally, if we enter **invNorm(.5)** we get the z-score that represents the median. . . wait for it. . . zero, right?

HW: 2.39 and 2.40

AP Computer Science We got our Big Java books today and boy, are they big! We also loaded the kareltherobot.jar file on the flashdrives so we can access Karel's world starting Thursday.

Please continue to bring your flashdrives every day and start to bring the Karel book. We will have assignments from the book.

Adv Algebra Support

Your test is Friday. Today many of us worked some of the word problems from the review sheet. Those who followed directions received a review checklist. Those who did not participate did not receive the checklist. Please follow directions so you can get additional resources next time.

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August 29, 2013

AP Statistics - We worked with probability density functions today. The first two homework problems relate to the methods we used in class today. Recall that the formula for the area of a trapezoid is .5(base1 + base2) * height. In the case of probability density functions it probably looks like .5 *( f(x_{1})+f(x_{2})) * width of the interval, where f(x_{1}) and f(x_{2}) are the heights of the curve at x_{1} and x_{2}.

HW DUE TUESDAY: 2.13, 2.19, 2.54, 2.55, 2.58 Answers to the odd problems are in the back of the book, but your answer must be more complete than the skeleton answer given there.

TEST WEDNESDAY, SEPT. 4

AP Computer Science

Finish up the assignments you already have PLUS the rounding assignment.

Please begin to read the Karel book and enter code when you get the urge. THe good stuff begins on about page 11, but there is a lot of background (general) information embedded in the content, so don't skip parts!

Adv Algebra Support

Prepare for the test. Use the materials given out in class to prepare. TO be successful you will need to be efficient in your working of problems. If you waste too much time trying to figure out how to work these problems you will run out of time--and we don't want that to happen. Get to the point where you can work problems without delay.

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August 30, 2013

AP Statistics Prepare for the test by doing the assigned homework.

AP Computer Science - Here are documents to help with the Payroll program.

Download Form 1036