Is that big or small? Help your students learn to sort big and small items with this hands-on lesson.

This lesson combines an introduction to biomes with some fun Venn diagram exercises. Not only will students learn more about nature, they'll also learn how to make comparisons between different things in nature.

Challenge students to compare two strategies for solving division expressions! Students will focus on their language use in this pre-lesson to the Dicey Division lesson.

So many students love to read books in a series but they don't give much thought to what a series really is. In this lesson students discover the two kinds of book series and apply classifying criteria to examples in the library.

Give your students a head start on 3D shapes with this lesson that has them use their observational skills to identify what differentiates the shapes.

Shapes are everywhere, but can students identify them? Help students to see how shapes can come together to form larger objects and symbols in this interactive lesson.