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.

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?

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

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

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

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

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

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.

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

In this fourth grade geometry worksheet, your child will learn how to calculate the area of a hexagon by breaking it down into rectangles and triangles first.

In this fourth grade geometry worksheet, your child will learn how to calculate the area of a pentagon by breaking it down into rectangles and triangles first.

Learn more about geometry by creating a 3-D triangular pyramid! Color, cut, fold and glue together the flaps to create a triangular pyramid.

Learn more about geometry by creating a paper triangular prism! This triangular prism makes for fun math learning and a great decoration.

Help students learn how to use a protractor.

In this geometry worksheet, children learn to calculate area two ways!

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

Learn the difference between parallel and perpendicular lines with this helpful tracing worksheet!

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

Learn about rotational symmetry with an exercise that's simple and easy to understand.

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

Help your child learn how to recognize congruent shapes with this fun worksheet.