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Showing Results for of a 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

Do you believe in the Bermuda Triangle? Compare witness accounts of these weird waters and draw your own conclusions in this reading worksheet.

The Bermuda Triangle

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

Treehouse Triangles #2

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

Tri-Angles

Make words from jumbled up letters. As long as the letters are somehow connected in this triangle pattern.

Word Pyramid

Your child can transform a triangle of felt into a colorful and motivating pennant sharing all her favorite characteristics and traits.

Craft a ME Pennant

Keep students’ learning on point with this effective and efficient study of the properties of triangles.


Properties of Triangles

Classifying figures by features is a fundamental geometry skill. Use this lesson plan to teach your students how to categorize triangles by internal angle types. 

Classifying Triangles by Internal Angles

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

Sorting Triangles

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

Treehouse Triangles #5

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

Treehouse Triangles #4

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.

Treehouse Triangles #3

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

Geometry Review: Angles and Polygons

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

Geometry Task Cards

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.

Categorize These Shapes!

You'll see angles from every angle! Students will describe and compare different angles they see in everyday situations. Use this lesson on its own or use it as support to the lesson Classifying Triangles by Internal Angles.

Describing Angles

If your kid looks like she needs a break from homework or something to work on during commercials, show her how to make a necklace of paper beads!

Make a Necklace With 20-Second Beads!

Is your child an amateur origami master? Reach the next stage of paper folding genius with this origami heart!

Origami Heart

Teach your fifth grader the ancient Japanese art of origami with this incredible origami balloon that uses just one piece of paper!

Build a Balloon...Out of Paper!

This science fair project idea builds models of various types of bridges and then  determines which bridge design is the strongest.

Strong Bridges

Find out whether a longer airplane will fly farther or a wider paper airplane.

Does A Longer Paper Airplane Fly Farther than a Wide One?

Students will have fun engaging in activities that develop their ability to write sequential step-by-step directions. This lesson helps young learners with being detailed and using transition words in their writing.

Giving Directions: Tell Me How

With school, home, and activities in between, life can sometimes feel chaotic to kids. Help your child learn how to stop and relax with handmade peace rocks.

Make Peace Rocks

Turn snack time into a healthy ho-ho-holiday activity! Make a face that looks like a cartoon Santa using fruits. It will be a fun activity that will get your family in the holiday spirit, and spice up your snack time with healthy treats.

Create a Santa Face With Fruit

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

Make a Galaxy Mobile

Here's a hands-on activity that helps your child understand the concept of "circumference."

Explore Circumference with Your Bicycle Wheel

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Area and Volume

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

How Important Are Cats' Whiskers?

Put old, worn-out picture books to work by constructing a book birdhouse, perfect for welcoming spring.

Birdhouse Craft

Save money by having your tween rock these homemade jeggings, a good craft for a lazy afternoon.

Make Your Own Jeggings

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