Parents and Teachers: I have lots of new games and activities coming out soon. Check out the latest, Will and His Happy Hamstars! - A fun game that incorporates the artwork of my own children and that reinforces addition and subtraction for kids in Pre-K, K, and Grade 1. Please support this site by following me on Facebook or Twitter! Please support this site by following me on Facebook or Twitter!
Grade levels 
 

CCSS.Math.Content.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.

Games/Modules

Online Practice

Printable

CCSS.Math.Content.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.

Game

Online Practice

Printable

CCSS.Math.Content.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.

Game/Module

Online Practice

Printable