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 Reader® . For Kindergarten and 2nd Grade Geometry activities click on the links below.
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.
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.
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
Equal Parts of a Square