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.

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.

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

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

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

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

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

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

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

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.

In this excerpt from an upcoming math workbook, your junior detective will make a positive ID on obtuse, acute and right angles.

Kids get to know shapes better by counting their line segments, endpoints, and angles, and record the info in this handy chart.

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

Is your child in need of a geometry review? This worksheet covers the basic 2-D shapes, from circles and triangles to pentagons and hexagons.

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.

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.

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.

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.

Help your students practice finding the perimeter as they work through problems involving pentagons.

This printable worksheet includes six different shapes. Ask your students to identify the shape in each column by coloring it in.

Students will find approximate areas for surfaces in their own environment by using pictures, numbers, and words to answer the geometric word problems.

A fun intro to geometry, this first grade math worksheet will help your child practice shape recognition and classification.

Introduce your little math learner to the idea of graphs, and even fractions, with this blank pie chart. This one is split into thirds!