Use this introductory lesson on comparison to provide students with practice identifying groups of more and less.

Adding and subtracting doesn't need to be boring! Learning to add and subtract can be done with a shoelace or while playing hopscotch.

What does it feel like to take 120 steps? In this lesson, students practice counting and completing word problems up to 120.

Raindrops are falling in this weather-themed math lesson! Students will manipulate raindrops and discover that raindrops can be counted in the same order, even when they are arranged in different ways.