# Geometry

Geometry (G)

Reason with shapes and their attributes.

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.

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.1

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.

Geometry (G) 1.G.A.1

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.

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Recognizing shapes | Geometry | Early Math | Khan Academy

Geometry (G)

1.G.A1

IXL Activities

Geometry (G) 1.G.A.2

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.

Watch This Video

Skills for this standard are coming soon to Khan Academy.

Khan Academy: Skills for this standard are coming soon.

Do these activities: KHAN ACADEMY 1.G.A.2 ACTIVITIES (Coming Soon)

Geometry (G) 1.G.3

1.G.3

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Skills for this standard are coming soon to Khan Academy.

Khan Academy: Skills for this standard are coming soon.

Do these activities: KHAN ACADEMY 1.G.3 ACTIVITIES (Coming Soon)

Geometry (G) Games

Reason with 2D and 3D shapes and their attributes.

Shape Games

Shape Builder

Build patterns, create and solve critical thinking problems, and explore geometric shapes.

Geoboard

Explore area and perimeter with a geoboard. Make shapes with rubber band.

Kangaroo Hop

Power your kangaroo by recognizing 2D and 3D shapes.