Teach your students to sort triangles as acute, right, or obtuse based on their internal angle type.

The animals are all mixed up--can your kindergartener sort them out and count them up according to kind?

Give your kindergartner more practice classifying 2D and 3D shapes with this fun coloring worksheet!

Can your first graders tell the difference between a square and a cube? How about a triangle and a cone? Use this geometry assessment to gauge your students’ abilities to use attributes to sort 2-D and 3-D shapes.

Shape, rattle, and roll! Kindergartners will love classifying 2D and 3D shapes with this coloring worksheet. 

Color the shapes in this spooky cemetery scene! Kids will practice identifying basic shapes and classifying them using the color code at the top of the page.

Assess your students’ understanding of the differences between 2-D and 3-D shapes using this shape assessment.

Build student understanding of the defining attributes of triangles with this sorting activity. Students will cut out different shape cards and sort them into examples and non-examples of triangles.

Help your students determine if a shape is regular or irregular!

What is the name of this shape? Is it a parallelogram or square? Teach your students to classify two-dimensional shapes using a Venn diagram.

Use this handy worksheet to help your students review those tricky polygons!

Help your students identify the differences between regular and irregular polygons!

Strengthen your child's geometry skills with this printable worksheet. Use this resource with your students to classify two-dimensional shapes like parallelograms, quadrilaterals, squares, and triangles.

Fifth graders review types of angles, triangles, and polygons in this handy geometry review.

Challenge your third grader to identify acute, right, and obtuse angles with this geometry worksheet.

In this 3rd grade geometry worksheet, your child will complete each polygon using a ruler, then identify what type of polygon it is.

This worksheet will introduce your child to the three types of triangles: the equilateral triangle, the isosceles triangle and the scalene triangle.

Put students’ understanding of coordinate planes to the test with this engaging geometry activity!

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.

Is it a square? Is it a triangle? This cut and paste worksheet will help your child categorize quadrilaterals, which are four-sided shapes.

Test your preschooler's shape skills with this worksheet. Your child will need to identify which items are in the shape of a square.

Treat your little one to an Easter shape hunt! She'll practice identifying geometric shapes and categorizing them by coloring each shape a different color.

Ask your child to find all the triangles in this worksheet on identifying shapes. He'll hone his skill of identifying shapes, a key part of basic geometry.

This worksheet requires a child to identify what is a rectangle in this picture.