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1st Grade Geometry

This page provides examples of 1st Grade Geometry Activities aligned with the Common Core State Standards. All activities are suitable for use in Math Centers, small group or whole class settings and are designed to elicit a range of responses and provide opportunities for students to communicate their reasoning and mathematical thinking.  All files are in PDF format and can be accessed using Adobe ReaderĀ® . For Kindergarten and 2nd Grade Geometry activities click on the links below.

1st Grade Geometry Activities

Reason with shapes and their attributes
1.G1 Distinguish between defining attributes (e.g. triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.

Possible Activities:
My 2D Shape Book
Geoboard Squares
Comparing 2D Shapes
Comparing 3D Shapes

Math Read Aloud Task Cards:
Mouse Shapes
When a Line Bends ...

1.G2 Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape and compose new shapes from the composite shape.

Possible Activities:
Putting Shapes Together
Make a Hexagon
Pattern Block Numbers
Pattern Block Triangles
Fold a Square
Tangram Squares
Tangram Triangles
Shape Patterns
Math Read Aloud Task Cards:
Grandfather Tang's Story

1.G.2 Putting Shapes Together

1.G3 Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.
Possible Activities:
Equal Parts of a Square
Fraction Pictures

More 1st Grade Geometry Read Alouds

More 1st Grade Geometry Resources

1st Grade E-Books (click on a cover for more information)

1st Grade Math Journals
Counting rhymes
Math Projects K-2
K-2 Addition and Subtraction Strategies

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