Shapes and Partitioning

What is the difference between a 2D shape and a 3D shape?

• 2D shapes have curves, while 3D shapes have straight lines

• 2D shapes are only found in nature, while 3D shapes are man-made

• The main difference is the number of dimensions - 2D shapes have two dimensions, while 3D shapes have three dimensions.

• 2D shapes are always symmetrical, while 3D shapes are asymmetrical

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CCSS.1.G.A.1

CCSS.2.G.A.1

Can you name a 2D shape that has 4 sides of equal length and 4 right angles?

• square

• triangle

• pentagon

• circle

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CCSS.1.G.A.1

CCSS.2.G.A.1

How can you partition a circle into two equal parts?

• By folding the circle in half

• By drawing a straight line passing through the center of the circle.

• By drawing a wavy line through the circle

• By using a pair of compasses to create two separate circles

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CCSS.3.G.A.2

Name a 3D shape that has 6 faces, 8 vertices, and 12 edges.

• Pyramid

• Cube

• Cylinder

• Sphere

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CCSS.6.G.A.4

Describe how you can partition a rectangle into 4 equal parts.

• By cutting the rectangle into 4 random shapes with different sizes.

• By drawing a horizontal and a vertical line through the center of the rectangle.

• By drawing a wavy line through the middle of the rectangle.

• By drawing a diagonal line from one corner to the opposite corner.

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CCSS.3.G.A.2

What is the name of a 2D shape that has 3 sides?

• circle

• triangle

• pentagon

• square

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CCSS.2.G.A.1

Explain how you can partition a circle into 4 equal parts.

• By dividing the circumference into 4 equal arcs

• By drawing a single diagonal line across the circle

• By using a protractor to measure and mark 4 equal angles

• By drawing two perpendicular diameters that intersect at the center of the circle.

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CCSS.3.G.A.2

Name a 3D shape that has a circular base and a curved surface.

• Cube

• Sphere

• Cone

• Cylinder

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CCSS.1.G.A.1

CCSS.2.G.A.1

How can you partition a rectangle into 3 equal parts?

• By cutting the rectangle into 3 random pieces

• By drawing a diagonal line from one corner to the opposite side

• By drawing two parallel lines across the rectangle.

• By folding the rectangle in half twice

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CCSS.3.G.A.2

What is the name of a 2D shape that has no straight sides?

• square

• triangle

• rectangle

• circle

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CCSS.1.G.A.1

CCSS.2.G.A.1