Use this glossary with the EL Support Lesson Plan: Triangle Time.

Use these vocabulary cards with the EL Support Lesson Plan: Triangle Time.

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 how to identify an isosceles triangle with this geometry worksheet.

Your child will add up the dice to build a fact family number sentence. Then, she will use her math skills to complete the fact family triangle.

Your child will use his knowledge of inverse operations to build another fact family number sentence and even complete a fact triangle.

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.

Help your child learn to recognize scalene triangles with this 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

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

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

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

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.

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

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

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

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

Challenge your third grader to figure out the addition and subtraction patterns on this worksheet.

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

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.

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.

Review common plane figures such as rectangles, triangles, circles and squares with your child as you hunt for all the shapes you can find in the picture.

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.

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.