Children find the unknown angles for five triangles, then identify whether the triangle is right, acute, or obtuse, in this geometry worksheet.

Use this glossary with the EL Support Lesson Plan: Triangle Time.

Use these vocabulary cards with the EL Support Lesson Plan: Triangle Time.

Can your kindergartener recognize triangles? Give her some extra practice with this worksheet. She'll draw triangles and pick them from a box of other shapes.

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.

This printable worksheet includes six different shapes: Rectangle, circle, hexagon, rectangular prism, sphere, and triangle. Can they match the shape to its name?

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

Find all the triangles in this fun shapes coloring worksheet!

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

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.

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

How many triangles do you see? Introduce your young student to shapes and beginning geometry concepts with this fun coloring sheet.

Children will take note of the everyday shapes that surround them in this fun geometry activity.

Trace, then color, then write, all while getting familiarized with basic shapes: circles, squares, triangles and rectangles.

What does one semicircle, two parallelograms, three triangles and a rectangle add up to?

Help your third-grader learn to recognize quadrilaterals with this geometry worksheet.

Are your students ready to learn about equal shares? Then, this worksheet is for them!

Circles and triangles and squares, oh my! Can your child find all the hidden shapes in this cute coloring page?

How can a few triangles and a rectangle make an airplane? Show your kindergarten the magic of shapes with this fun cut and paste activity.

This fun cookie worksheet will help your students learn to divide cookies into halves, thirds, and fourths.

This early geometry worksheet offers fun practice as students learn to identify and compare 2D shapes.

Help your third-grader learn to recognize the identifying features of a polygon on this geometry worksheet.

Help kindergartners learn to distinguish between two- and three-dimensional shapes with this inviting shapes maze! 

Help your kindergarten child learn his geometric shapes with this printable coloring worksheet.

Kids learn about symmetry in this fun 2nd grade geometry worksheet by drawing the other half of each picture to make a symmetrical shape.

Learn shapes and patterns as you build logic and reasoning skills with these tangram picture puzzles. This printable will give him a quick review of colors too!

On this worksheet, your child will learn to name polygons and identify them in the world around him.

Learn the different shapes with a tangram puzzle! Your little learner will re-create this picture using tangram shapes, a great way to build logic skills.

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

Trapezoids are quadrilaterals with only one pair of parallel sides. This worksheet will help your students learn to identify and distinguish trapezoids from other two-dimensional shapes with the help of a word bank.