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.

Help your child learn how to identify an isosceles triangle with this geometry worksheet.

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

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.

Help your child learn to recognize scalene triangles with this worksheet.

Help your child practice identifying equilateral triangles on this geometry worksheet.

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

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

On this geometry worksheet, your third-grader will look at the different triangles and label them as equilateral, isosceles, or scalene

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.

In this worksheet from our How to Draw series, emerging artists can learn to break pictures into geometric 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!