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.

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.

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

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

Help your child sort these kids using counting and classifying skills. Your child will count, and learn to group and identify by characteristics.

Can your preschooler solver this sorting activity? In this sorting worksheet, she'll use her logic to find the items and animals that don't belong.

Rosie has lots of toys, but she's not sure where they go. Help your child place the items in the correct spots, and encourage her to clean her room, too.

Categorize the objects by location in this cut-and-paste sorting worksheet!

In this preschool math worksheet, your child will practice sorting and categorizing to figure out what doesn't belong.

Count and classify animals by their habitats and abilities. Help your child work on sorting skills with this count and classify animals worksheet.

Count and classify your produce beyond fruits and vegetables. Try this fruits and vegetables worksheet to increase your child's sorting skills.

Kris the Koala is cleaning his house, and kids completing this preschool sorting and categorizing worksheet help by circling things that belong in the bathroom.

Kris the Koala is cleaning his house, and kids completing this preschool sorting and classifying worksheet help by circling objects that belong in the kitchen.

Kris the Koala is cleaning his house, and kids completing this preschool sorting and classifying worksheet help by circling objects that belong in the backyard.

Kris the Koala is cleaning his house, and kids completing this preschool sorting and classifying worksheet help by circling objects that belong in the bedroom.

Which of these cute images are insects, and which are not? Can your preschooler put them into categories?

Preschoolers are full of observations about the world around them. Get your child to apply what he knows by having him figure out what doesn't belong on a desk.

Help your preschooler wrap her head around nighttime and daytime objects with this cute categorization worksheet.