Which number doesn't belong? This lesson requires students to think critically as they determine which number is not a factor of a particular number. Teach it on its own or as support for the lesson Factors Over the Rainbow.

In this lesson, students use cubes to build arrays to represent factor pairs of numbers within 100. They use this understanding to identify multiples as well.

This lesson introduces students to the concepts of mean, median, and mode in a hands-on and visual way.

Get your students comfortable with discussing multiple strategies to solve subtraction problems with this lesson on two- and three-digit subtraction. It may be taught independently or as support for the lesson Subtraction with Regrouping.

Graphs bring data to life and help us draw conclusions about the information presented. In this lesson students will engage with three different kinds of graphs by asking and answering interpretive questions.