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?

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.

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

Which coin features our first president? Kids learn as they also practice tracing, counting, and coloring the fabulous quarter.

Kids learn all about dimes on this fun-filled printable. They also get writing, coloring, and even counting practice.

Introduce your students to divisibility rules with this handy worksheet that goes over the rules and asks students to fill in examples.

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

Which coin is worth five cents? The nickel, of course! Teach your child about the five cent piece with a fun activity-filled worksheet.

Looking for a worksheet to help your child with telling time? This printable worksheet will give your child practice reading a clock.

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

Prepare for the school day with this engaging sudoku puzzle for kindergarteners and first graders!

Your student will practice her rounding skills with this multiple choice worksheet. Once she's done, she'll be an expert at rounding up and down.

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

In this worksheet, students must use their logic, math, history, and research skills to solve four clues about U.S. history.

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.

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