1ST GRADE GEOMETRY 

Over 150 1st Grade Math Centers for Number, Geometry, Measurement and Data



This page provides sample 1st Grade Geometry Centers from our 1st Grade Math Centers eBook.  Try out the sample Geometry Centers listed in blue under each Common Core State Standard or download the 1st Grade Math Centers eBook and have all the Number, Geometry, Measurement and Data Centers you’ll need for the entire school year in one convenient digital file.  With over 150 easy-prep, engaging centers this resource will simplify your lesson planning and make hands-on math instruction an integral part of your classroom.
Teaching in a state that is implementing their own specific math standards?  Download our 1st Grade Correlations document for cross-referenced tables outlining the alignment of each state's standards with the CCSS-M, as well as the page numbers in our 1st Grade Math Centers eBook related to each standard.  Teaching in Australia?   This resource is also available for the Year One outcomes as written in the Australian Curriculum: Mathematics.

Reason with shapes and their attributes

1.G.A.1 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.

My 2D Shapes Book
Geoboard Squares
Literature Link: Mouse Shapes

Also included in 1st Grade Math Centers:


1.G.A.2 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.

Putting Shapes Together
Make a Triangle
Literature Link: Grandfather Tang's Story
Literature Link: Tangram Cat

Also included in 1st Grade Math Centers:
1.G.A.2: Make a Triangle
Geometry Read Alouds
1.G.A.2: Tangram Cat



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1.G.A.3 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.

Equal Parts of a Square (ver. 1)

Also included in 1st Grade Math Centers:
1st Grade Math Journal Task 145
1st Grade Math Journal Task 146