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.

Once students understand angle basics, challenge them to find missing angles in this exercise!

Learn some basic geometry with this worksheet all about the angle.

This fun puzzle provides lots of angle practice for your child. Can they figure out which way the boat is facing after the last turn?

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.

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

Let your fourth grader play triangle detective: can she spot the acute triangles on this worksheet?

Introduce your child to different angles starting with an obtuse angle and see him find the obtuse angles in this worksheet.

Students get to practice measuring angles using built-in protractors in this fun geometry activity! After measuring, they'll put their angle knowledge to the test by classifying each angle as acute, obtuse, right, or straight.

Help your third-grader learn about right angle geometry with this simple geometry worksheet.

Solve school-themed scenarios in this perimeter word problem worksheet for fourth graders!

This worksheet asks kids to help the captain steer the ship wheel by according to the angle measurements given.

In geometry, an angle is formed when two lines meet. Use this resource with your students to enhance their understanding of angles in polygons. Students will seek to identify and differentiate between right angles and other angles across various shapes.

This colorful worksheet asks your fourth grade geometry detective to practice identifying right triangles.

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

Help your students bring mathematics to life! In this exercise, your students will create word problems to accompany a shape with the length of each side labeled.

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

Is your fourth grader reluctant to practice geometry? This colorful worksheet, which explores obtuse triangles, may be just what he needs!

Take an educational trip to the zoo with this word problem worksheet for third and fourth graders!

Shape up those problem solving skills with a fun block puzzle activity, comparable to tangram puzzles!

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?

Angles come in all kinds of shapes and sizes—can you spot them all? Use this resource with your students to practice finding all the angles in 2-D shapes. Your students will then be challenged to identify right angles in two-dimensional shapes.

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.

Challenge your students with a real-world fraction multiplication problem!

How well do you know your angles? Let's find out! Use this geometry resource to help your students identify and differentiate between important angles such as acute, obtuse, straight, and right angles.