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.

How many sides does a triangle have? Three! Sort shapes that have three sides and shapes that don't have three sides with this wacky worksheet.

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

Simplify and group equivalent expressions with this engaging card sort activity!

Sort and classify real numbers into specific categories with this hands-on math activity!

How many different kinds of fruit do you see? Help your child learn to sort and count objects with a fun coloring activity.

Are they big or small? Are they purple or brown? Help your child sort bears into categories with this lovable worksheet.

In this worksheet, your child will practice identifying shapes and sizes of buttons. Cut them out, and sort them into two distinct categories.

Use this hands-on card sort activity to give students practice determining slope from a graph!

Practice differentiating between linear and nonlinear functions in tables, graphs, and equations in this hands-on card sort activity! 

Use this hands-on card sort activity to give students practice determining the slope of a line from a pair of points!

Use this engaging card-sort activity to help eighth-grade math learners practice finding the number of solutions of linear equations. 

This counting worksheet also involves coloring! Give your child some practice counting and sorting these party favors as she colors them.

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?

Use this hands-on card sorting activity to help sixth-grade learners distinguish between statistical questions and questions that are not statistical. 

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

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.

Which of these items do not belong? Help your child sort out which things go in a construction site and which do not.

Someone has mixed up all these Christmas decorations! Your child will help re-organize them, and practice her counting and sorting skills.

Teach your preschooler about object properties by encouraging him to figure out which thing is shorter and which is taller in each pair of objects.

This piggy bank has so many coins! Kids completing this kindergarten math worksheet cut out the coins, sort them, and paste them into a picture graph.

All these beach toys need to be organized! Is your child up to the task? She'll get to color while she counts and sorts the different items in the picture.

Grab your crayons and get ready to help decorate the present!

Kids will sort and classify toys in this categorizing worksheet. Help your child sort toys by type and uses in this toy categorization 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.