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.

Do you believe in the Bermuda Triangle? Compare witness accounts of these weird waters and draw your own conclusions in this reading worksheet.

Does your child need a little more practice finding the area of a triangle? This worksheet will give them all the practice they need!

Give your students targeted practice finding the area of a triangle in this focused geometry worksheet.

Know a good geometry detective? Challenge your student to use the formula for calculating the area of a 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.

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

This eighth-grade geometry worksheet introduces students to the Triangle Angle Sum Theorem and has them practice finding a missing interior angle in a triangle.

Give students practice finding the area of triangles using the area formula with this sixth- and seventh-grade geometry worksheet!

These "Treehouse Triangle" worksheets break down the geometric process into easy, solvable steps.

Give students extra practice finding the area of triangles using the area formula with this sixth- and seventh-grade geometry worksheet!

Give your fourth grader a gentle introduction to geometry with this charming triangle area worksheet.

Learners sleuth out the area of three triangles in this helpful geometry worksheet.

Learners sleuth out the area of three triangles in this simple geometry worksheet.

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.

Students use the Triangle Angle-Sum Theorem to solve for the variable in triangles where two or more angle measures are linear algebraic expressions.

As kids color in this sunny scene, they'll learn about the sun and what it does.

Get out those books, open the laptop, and research what Ramadan is all about. Your child can learn valuable research skills while learning about this holiday.

Use this glossary with the EL Support Lesson Plan: Learn Story Elements.

Students practice using the converse of the Pythagorean theorem to identify right triangles with this geometry worksheet!

Help your child learn sight words with this first grade reading worksheet. Your child will color the words that rhyme with green to reveal the hidden picture.

Use these vocabulary cards with the EL Support Lesson Plan: Learn Story Elements.

Use this glossary with the EL Support Lesson Plan: Learn to Compare and Contrast.

Practice using the converse of the Pythagorean theorem to identify right triangles with this eighth-grade math worksheet!

Find the missing angle in a triangle using addition and subtraction.

Kids learn about the Earth's solid and atmospheric layers, then label the diagram with the correct terms in this fifth grade Earth science worksheet.

This worksheet uses dinosaurs to help your first grader learn about parts of speech.