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.

Do you feel like your students are on a merry-go-round when it comes to rounding? This lesson will give your student control of the “ride” and give them tools to use when rounding.

Students will learn how to find the actual value of three-digit numbers with this activity that has them use manipulatives to create the expanded form of a number.

This bear-y fun lesson will help your students understand addition and subtraction and reward their efforts with a sweet treat!

Help your students learn about keeping track of numbers using one-to-one correspondance in this fun lesson!

In this lesson, your students will get hands-on practice comparing quantities! Students will compare using buttons, blocks, and their classmates.