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Showing Results for triangles

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

Sorting Triangles

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


Properties of 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

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

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

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

Treehouse Triangles #2

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

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

Triangle Angles

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

Sarah is not your ordinary spider. She likes to know the exact degrees of every angle in her web. Can you help her calculate the missing angles?

Find the Angle

Create a sun-shaped summer words chart in this DIY craft activity!

Summer Words

Assess your students&rsquo; knowledge of geometry concepts from polygons to coordinate planes!

Mixed Geometry Review

Assess kids' understanding of geometry with this sheet.

Shape Up with Geometry

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

Tri-Angles

Sure, angles can be confusing. Here's a fun activity to brush up your child's knowledge of these geometry essentials.

Introduce Angles!

Adding fractions with unlike denominators just doesn't work like it does when the denominators are the same. Let's make it work! Students will add fractions with unlike denominators with sums between one and two.

Make It Work! Adding Fractions with Unlike Denominators

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

Strong Bridges

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!

Make a creative Father's Day art card to celebrate your family's beloved guy!

Personalized Father's Day Card

Learn how to make a trick-or-treat bag for Halloween. See how to make a decorative trick-or-treat bag with this Halloween craft tutorial.

How to Make a Trick-or-Treat Bag

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

Origami Heart

Show your class how combining two objects can create a new object in this hands-on science lesson. Students will learn why breaking apart an object doesn't change its mass.

All About Matter: Chemical vs. Physical Changes

These 3-D snow globe cookies look amazing on any table and will gets kids excited about the upcoming holiday season!

Snow Globe Cookies

To pay tribute to the ancient Mexican art of mosaics, your child can craft a colorful mosaic using old magazines, a paper plate and lots of imagination.

Make an Aztec Inspired Mosaic Plate

Teach your students to predict and explain features of scaled regular shapes.

Shapes to Scale

Does your fifth grader need a study buddy for geometry? Forget about a tutor. Help him make his own geometry dictionary!

Make a Geometry Dictionary

This science fair project idea examines the reason boats are shaped and engineered.

Keep the Boat Afloat

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