Turtle Crossing

This activity will help your students understand the definition of a proportional relationship. They'll create a giant and then make sure all of his features are proportional. They'll see the…

In this activity students develop their intuition for mean absolute deviation. We start with a simple question: "Can you guess my number?" Students submit a guess, receive feedback (too low,…

This Custom Polygraph is designed to spark vocabulary-rich conversations about fractions and part-to-whole relationships. Key vocabulary that may appear in student questions includes: shaded, unshaded, fraction, part, whole, numerator, denominator,…

In this activity, students build a model to describe the relationship between the number of Starbucks locations in the United States and the number of years since 1992. Students then…

This activity offers starter screens that you can copy and paste into your activities. These screens are intended to help you check students' understanding in the middle or at the…

In this activity, students complete three rounds of estimation challenges. After each initial estimate, they view a dot plot of their classmates' responses and decide whether (and how) to revise…

In this activity, students practice what they've learned about exponential functions by matching equations to properties of the graphs they will produce. They will then use their knowledge of transforming…

In this activity, students will begin to see a set of data points as a single thing that can be analyzed, not just a bunch of disconnected points. Students learn…

In this activity, students explore compound inequalities and make connections among multiple representations (including algebraic expressions, verbal statements, number line graphs, and solution sets).