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

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

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

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

This "Treehouse Triangles" worksheets breaks down the geometric process into simple steps. Take angles from archenemy to acquaintance with this worksheet.

Practice geometry in a fun way with this "Treehouse Triangles" worksheet. Get your child to measure angles with ease in this treehouse-themed worksheet.

Build subtraction sentences with fact family triangles in this engaging worksheet!

Find the facts within the number triangles in this engaging subtraction worksheet!

Use these vocabulary cards with the EL Support Lesson Plan: Fact Family Triangles.

Students will love getting to make and cut out their own fact family triangles as they practice writing three related numbers.

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

Buster the Builder needs help finding the angles of the walls in this treehouse. Your child will use his geometry know-how to help him out.

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

Master your addition facts with this colorful, inviting math worksheet!

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.

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

Challenge your students to identify or draw 18 different geometric shapes, including polygons, quadrilaterals, and triangles.

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

Focus on fact fluency within 10 in this colorful addition worksheet!

Is your child in need of a geometry review? This worksheet covers the basic 2-D shapes, from circles and triangles to pentagons and hexagons.

Strengthen your child's geometry skills with this printable worksheet. Use this resource with your students to classify two-dimensional shapes like parallelograms, quadrilaterals, squares, and triangles.

Triangles, trapezoids, rhombi...oh my! Identifying different shapes is an important milestone for young learners. Use this colorful activity to assess your first graders’ abilities to recognize and differentiate between 2-D shapes.

Use this resource to help your students develop their understanding of trapezoids and other two-dimensional shapes. Students will compare the attributes of trapezoids to those of other plane figures, such as triangles and ovals, in this geometry activity.

Sarah is not your ordinary spider. She likes to know the exact degrees of every angle in her web. Can you help her calculate the missing angles?

Students practice shading, writing, and calculating fractions in this two-page worksheet.

Space out with this shapes worksheet, where kids identify basic 2D shapes.

Give your students a chance to sort polygons into categories that make sense to them.