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3rd Grade Classifying Two-Dimensional Shapes Resources

For students who learn by doing, this exercise will make learning different shapes’ classifications much easier.


Classifying Shapes

Build reasoning and logic skills with a fun geometric shapes puzzle!

Color a Tangram Template

Geometry isn't so scary when it comes with colorful designs and easy-to-interpret illustrations! In order to take on algebra later on, your student will first need to conquer basic geometry.

Geometry Shape Up

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 

Help your third-grader learn to recognize quadrilaterals with this geometry worksheet.

Naming Quadrilaterals

Symmetry is all around us, even in the letters we use in the English language! Use this fun geometry exercise with your students to give them practice identifying and drawing lines of symmetry.

Alphabet Symmetry

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

Identifying Triangles

Use this fun math resource with your students to integrate geometry and fractions. Your students will use hexagons to enhance their understanding of fractions by creating their own visuals.

Hexagon Fractions

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

Equilateral Triangles

Use this worksheet as a formative assessment for your students as they study the characteristics of polygons.

Categorizing Shapes Check 

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

Scalene Triangles

Children practice seeing fractions as parts of a whole in this foundational geometry worksheet.

Fraction Fundamentals: Part of a Whole

A key characteristic of trapezoids is that they have a set of parallel lines—lines that never intersect. Use this helpful geometry resource with your students to practice identifying parallel lines in trapezoids and comparing different 2-D shapes.

Trapezoids and Parallel Lines

Give your students a chance to sort polygons into categories that make sense to them.

Polygon Shape Sort

4 lines make a quadrilateral! Help your child make various shapes with the dots in this worksheet.

Making Quadrilaterals

This Monster Glyph will get your child giggling during the scariest time of the year! This worksheet will have your learner thinking about geometry, math facts, and their personal preferences while creating a unique monster!

Monster Glyph 

Use this glossary with the EL Support Lesson: The Attributes of Polygons.

Glossary: The Attributes of Polygons

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

Isosceles Triangles

In this 3rd grade geometry worksheet, your child will complete each polygon using a ruler, then identify what type of polygon it is.

Polygons: Name that Shape

In this 3rd grade geometry worksheet, your child will practice identifying parallelograms among other shapes and will color them in to find a hidden word.

Identifying Parallelograms

Can you see the symmetry? Use this resource with your students to practice identifying shapes with symmetry. After your students identify the symmetrical shapes, they will draw a line of symmetry.

Shapes with Symmetry

Use this resource to help your students develop their understanding of trapezoids and other two-dimensional shapes. Students will compare the attributes of trapezoids to those of other plane figures, such as triangles and ovals, in this geometry activity.

Geometry: Comparing Trapezoids & Other Shapes

Challenge your third grader to identify acute, right, and obtuse angles with this geometry worksheet.

What's Your Angle?

With this drawing worksheet, your child will have fun learning about the identifying features of polygons.

Drawing Polygons

Use this glossary with the EL Support Lesson: Naming Shapes and their Attributes.

Glossary: Naming Shapes and their Attributes

This little chick is so cute that your child will want to make a whole flock to call her own.

Little Chick

Help your third-grader learn to recognize the identifying features of a polygon on this geometry worksheet.

What is a Polygon?

Geometry in third grade introduces kids to the idea that shapes have different categories (rectangles, rhombuses, etc..) attributes (four-sided, etc...) and areas of different values. This lesson, designed by our curriculum experts, provides the guided instruction and practice that third graders need to conceptualize shapes in a deeper way. For more practice, download and print the third grade geometry worksheets recommended as part of this lesson.

Geometry 5

In this geometry exercise, children calculate the perimeter of various trapezoids by adding up the lengths of their sides.

Trapezoid Perimeters

Use this resource with your students to have them analyze mathematical statements about polygons. They will decide if they are always, sometimes, or never true.

What is True About the Shapes?

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