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.

Give your students a chance to sort polygons into categories that make sense to them.

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

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

Introduce kids to key math skills on this shape-filled worksheet. Kids count and color the different shapes, then make a graph to show how many are pictured.

Are your students still tripped up by those tricky trapezoids? This geometry worksheet can help! Give your second graders a chance to have fun while they practice trapezoid identification with this cut-and-paste activity.

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.

See if your child can find all the triangles hidden on this geometry worksheet.

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.

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.

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.

Can your kid tell the difference between 2-dimensional and 3-dimensional shapes? Kindergarten is a good time to start!

Bust out those crayons, it's time to test your knowledge of basic shapes! Have your first grader sort out these shapes by color.

This shape challenge worksheet doubles as a coloring page, and builds early geometry skills.

Stellar students, get ready for a math mission from outer space! Your child will get to help this alien sort and color the different shapes in this worksheet.

Pentagons make for perfect houses! Help students to identify and develop an understanding of this 2-D shape with this fun activity. Students will sort out the pentagons from other shapes and then turn them into houses.

How many shapes are there? They're all mixed up! Can your kid count how many there are of each type?

Here's a colorful math challenge for your kindergartener: can he count up all the triangles in the birthday party scene?

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?

Help your child practice recognizing rectangles with this colorful worksheet that challenges him to count up all the rectangles in the picture.

Ovals lead the way in this counting and drawing math worksheet. Kids boost fine motor skills as they trace and draw their own ovals, then count them up.

Spark your first grader's excitement for geometry with a little outer space shape practice. Can he count all the shapes in this space scene?

This fun geometry activity challenges your students to identify, color, and count all the trapezoids and other quadrilaterals hidden amongst a variety of two-dimensional shapes.

Here's a worksheet that shows kids how shapes can be found in real things by asking them to find and count all the different shapes in a picture of a garden.

Hexagons are hiding in plain sight throughout this worksheet—all you need to do is count the sides of each shape to identify them! This is a great geometry activity to help your students practice identifying and differentiating between 2-D shapes.

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

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

Kindergarten math is all about counting and shapes. Kill two birds with one stone with this worksheet that gives kids counting and shape practice all at once.

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

Learners will practice tracing, drawing, counting, and coloring diamonds in this hands-on practice worksheet.