# Parallel Lines

In this activity, students explore connections between equations of parallel lines in slope-intercept form.

## Marcellus the Giant

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…

## What’s My Number?

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,…

## Strength in Numbers

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…

## Card Sort: Exponentials

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…

## Classy Cats

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…