There is a mix of objects in this workbook and it's up to your child to sort them by colors, shapes and sizes. Plus, he'll practice identifying weight and making simple comparisons.

What better way to learn sorting and categorizing than with familiar objects preschoolers see every day? This workbook is great for practice sorting and comparing, using household items.

Become a master of analysis! In this series, kids practice collecting, creating and plotting data on graphs. Then they'll practice reading graphs, making predictions, and comparing data.