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Classroom Activities	Author	Level	Technology
Testing Claims About Proportions Students find z-scores and critical values to test claims about proportions. To verify the results, they find P-values by either finding the area under the curve with the Integral tool, or by using the 1-Prop z Test command. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ TI-Nspire™ CAS	265	0
Difference Between Two Proportions Students use confidence intervals to estimate the difference of two population proportions. First they find the intervals by calculating the critical value and the margin of error. Then, they use the 2-propZInterval command. Students find confidence intervals for differences in proportions in real-life situations and use them to make judgments about certain claims. Last, they determine required sample size, n, when given a confidence interval and margin of error. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ TI-Nspire™ CAS	244	0
Comparing Two Means In this activity, students will test hypotheses concerning means of two populations. They calculate the test statistic and the critical values and then graph the critical region and plot the value of the test statistic. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ TI-Nspire™ CAS	2463	3
t Distributions Students compare the t distribution to the standard normal distribution and use the invT command to find critical values for a t distribution. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS	2850	11
Chi-Square Distributions Students compare the Chi-Square distribution to the standard normal distribution and determine how the Chi-Square distribution changes as they increase the degrees of freedom. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ TI-Nspire™ CAS	2386	6
Introduction to the Central Limit Theorem Students discover the Central Limit Theorem by simulating rolls of two, four, and seven number cubes via the random number generator. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS	2278	4
Independence Is the Word Students use a simulation to find the experimental probability of independent events. They will find the sample space and then compare the experimental and theoretical probabilities. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS	2229	4
Too Many Choices! Students investigate the fundamental counting principle, permutations, and combinations. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS	2272	4
Transforming Relationships In this activity, students will assess the strength of a linear relationship using a residual plot. They will also calculate the correlation coefficient and coefficient of determination to assess the data set. Students will then learn to transform one or two variables in the relationship to create a linear relationship. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS	2227	3
Square it Up! Students investigate the method of least squares by adding the squares to a scatter plot and moving a line to find the minimum sum. Then they compare their line to the built-in linear regression model. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ TI-Nspire™ CAS TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ Navigator™ TI-Nspire™ Apps for iPad®	2510	5
Comparing Prices Students will compare average U.S. gasoline prices per gallon for two years. Then they will use the mean and standard deviation (SD) and the median and interquartile range (IQR) to measure the center and spread of price data. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ TI-Nspire™ CAS	2421	4
Sampling Students learn about each of the four types of random sampling methods and use the randInt command to find each kind of sample from a given population. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ TI-Nspire™ CAS	2288	6
What! A Mistake! Students learn about Type I and Type II errors. Then, for a given scenario, students will calculate the probabilities of errors and the power of the test. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS	2130	7
Means With Confidence Students estimate the true mean of a population when the standard deviation is known by finding the sample mean, margin of error and confidence interval. Alignment : Standards Textbook	Texas Instruments	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS	2405	6
TI-PoW: Mauna Loa This problem presents an opportunity for students to think about mathematical modeling, linear regression, and even periodic functions. If your state has adopted the Common Core State Standards, this alignment might be helpful: Statistics: Interpreting Data S-ID: Summarize, represent, and interpret data on two categorical and quantitative variables S-ID: Interpret linear models Alignment : Standards Textbook	Math Forum	9-12	TI-Nspire™ CX/CX II TI-Nspire™ CX CAS/CX II CAS TI-Nspire™ TI-Nspire™ CAS	957	0

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