Here's a geometry challenge for your first grader that puts his counting skills to work: can he count the number of sides each shape has?

Combining coloring, counting, and a hidden picture puzzle, this worksheet is sure to keep your preschooler entertained.

Shape up those problem solving skills with a fun block puzzle activity, comparable to tangram puzzles!

Challenge your kindergartener to find all of the rectangles in these bright images. He'll boost observational skills and shape know-how at the same time.

All of these pictures are hiding some sneaky triangles. Can your kindergartener find them all in this colorful worksheet?

Learning about triangles is fun with this hidden shapes worksheet featuring a bear cub happily building a sandcastle at the beach.

Kids sometimes don't distinguish between a shape that's open and one that's closed. Here, kids can see the difference as they classify shapes as open or closed.

Help your preschooler recognize round shapes with this find-the-shape worksheet that asks her to circle all the round objects on the page.