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Showing Results for properties of triangles

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

Fact Triangles: Subtraction Within 10

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

Fact Triangles: Subtraction Within 20

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

Vocabulary Cards: Fact Family Triangles

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

Make Your Own Fact Family Triangles

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

Everyday Triangles

This hands-on lesson will get students thinking and talking about how the numbers in fact families are related. Use alone or with the lesson plan **Fact Family Trees.**

Fact Family Triangles

Can you tell the difference between the associative, commutative, and identity properties?

Name That Addition Property!

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

Fact Triangles: Addition to 20

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

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

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

Fact Triangles: Addition to 10

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.

Shape Dimensions

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.

2-D Shapes Check-in

Roll some dice to introduce the early concepts of associative and commutative properties in addition by composing and decomposing 10. Worksheets and a quiz are included!

Give Me 10!

Learn the associative property of addition with this inviting worksheet!

Associative Property of Addition: Rewrite the Expression

Space out with this shapes worksheet, where kids identify basic 2D shapes.

Shape Pictures: Space Travel

Practice subtraction with art! Help early learners grasp the concept of "taking away" using drawings. This lesson helps students work toward subtraction with numerals, and the mastery of simple shapes.

Art Subtraction

This shape challenge worksheet doubles as a coloring page, and builds early geometry skills.

Basic Shapes: Color and Count

Sorting takes on a new challenge for students in this activity which engages their critical thinking skills. As students determine defining attributes, they’ll figure out what makes a shape a shape!

Shape Sort

Square Tangram

Kids practice identifying simple shapes based on descriptions of their attributes.

Identifying Shapes By Attributes

Shapes all around! Kids learn basic preschool shapes with this sweet song.

Preschool Shapes Song

Lunch is always better when you share it with a wise companion This wide-eyed owl craft is a great way for your growing learner to practice cutting shapes.

Owl Bags

Geometry meets data in this fun lesson! Students will build a design using pattern blocks and then graph the number of each shape used. This scaffolded EL lesson can be used alone or alongside **Graphing Colored Counters.**

Graph My Design

Kids learn simple shapes and their attributes in this sweet song.

Shapes Song

Challenge your young mathematician with some solid shapes like cubes, pyramids, prisms and cones!

Plane and Solid Shapes

On the road again! Kids identify 2D and 3D shapes in this sorting game.

2D and 3D Shape Sort: Car

Kids sometimes don't distinguish between a shape that's open and one that's closed. Here, kids can see the difference as they classify shapes as open or closed.

Looking at Shapes: Open or Closed?

Get practice writing two-digit subtraction equations using an number line with this first-grade math worksheet!

Subtracting Tens on an Open Number Line: Write the Equation #2

Get practice writing two-digit subtraction equations using an open number line with this first-grade math worksheet!

Subtracting Tens on an Open Number Line: Write the Equation #3

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