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Showing Results for of triangle

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

Triangle Angles

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

Glossary: Triangle Time

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

Vocabulary Cards: Triangle Time

This worksheet will introduce your child to the three types of triangles: the equilateral triangle, the isosceles triangle and the scalene triangle.

Three Types of Triangles 

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.

Super Shapes: 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.

Triangle Sort

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

Identifying Triangles: Acute Triangles

Help your child learn how to identify an isosceles triangle with this geometry worksheet.

Isosceles Triangles

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.

Fact Family Triangles with Dice

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

Tri-Angles

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

Fact Family Dice

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

Equilateral Triangles

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

Identifying Triangles: 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?

Match That Shape

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

Scalene Triangles

Circle, cheese, triangle, square: One of these things does not belong in this group. Help your child figure out the outlying object with this worksheet.

What Doesn't Belong?: Shapes, Letters, and Numbers

See if your child can find all the triangles hidden on this geometry worksheet.

Count the Triangles

How much does your fourth grader know about triangles? Can he figure out the missing angle in each of these triangles?

The Missing Angle: Triangles

On this geometry worksheet, your third-grader will look at the different triangles and label them as equilateral, isosceles, or scalene

Identifying Triangles

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

Obtuse Triangles: Identifying Triangles

All of these pictures are hiding some sneaky triangles. Can your kindergartener find them all in this colorful worksheet?

Find the Shape: Triangles

Find all the triangles in this fun shapes coloring worksheet!

Color the Triangles

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

Fact Triangles: Subtraction Within 20

Here's a colorful math challenge for your kindergartener: can he count up all the triangles in the birthday party scene?

How Many Triangles?

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.

Sorting Shapes

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

Fact Triangles: Subtraction Within 10

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

Sorting Triangles

How many triangles do you see? Introduce your young student to shapes and beginning geometry concepts with this fun coloring sheet.

Find the Shapes: Triangles

This worksheet challenges your preschooler to decide which two triangles are the same shape and size.

Tricky Triangles: Beginner's Geometry

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

Vocabulary Cards: Fact Family Triangles

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