Mathematics
Mean, Median, Mode and Range: Reading Time Survey
Students build a frequency table from survey data and find the mean, median, mode and range of two data sets.
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Mathematics
Mean, Median, Mode and Spread: Quiz Scores and Commute Times
Students compute mean, median, mode, range and standard deviation, then see how an outlier changes each measure.
Mathematics
Multi-Step Equations: Distribute, Combine, Solve
Students solve eight multi-step equations that need distributing, combining like terms, and moving variables, then find errors in sample work.
Mathematics
Normal Distribution Reasoning: Z-Scores and the 68–95–99.7 Rule
Students compute z-scores and use the empirical rule to find percentages and counts in normally distributed data.
Mathematics
Order of Operations: PEMDAS Practice and Parentheses Puzzles
Students evaluate expressions with exponents and parentheses and place parentheses to make equations true.
Mathematics
Percent Change: Discounts, Tax, Tips and Growth
Students calculate percent increase and decrease in sales, tax, tips and population problems and correct three sample student solutions.
Mathematics
Percent Problems: Discounts, Tax and Tips
Students match percents to fractions, then solve discount, tax, tip and part-of-a-whole problems and correct sample mistakes.
Mathematics
Polynomial Operations: Add, Subtract, Multiply and Check the Work
Students classify polynomials, add, subtract and multiply them, test a possible factor, and spot errors in sample work.
Mathematics
Polynomials: Add, Subtract, and Multiply
Students add and subtract polynomials, multiply with the distributive property and an area box, and answer vocabulary questions.
Mathematics
Probability: Dice, Marbles and Two-Way Tables
Students count outcomes for two dice, multiply independent and dependent probabilities, and use a two-way table for conditional probability.
Mathematics
Probability: Sample Spaces, Compound Events and Experiments
Students fill in a two-dice sum table, find probabilities of simple and compound events, compare experimental and theoretical results and correct sample work.
Mathematics
Pythagorean Theorem: Find the Missing Side
Students find missing sides of right triangles, test whether side lengths make a right triangle, solve ladder and screen problems and fix common mistakes.