Second Grade Two Dimensional Shapes

Each cubby in a classroom has a shape on it. The teacher gives clues to help the kids find their cubbies. Jack's cubby has a trapezoid on it. Sam's cubby has a shape with 9 sides and 9 vertices. Mark's cubby has a pentagon on it. Which cubby is Sam's?

• Cubby 1

• Cubby 2

• Cubby 3

These 3 shapes can be put together to make a new shape. What new shape do they make?

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Look at these 2 triangles. What shape can be made by putting them together?

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Dan separated this figure into 2 shapes. What 2 shapes did he have after separating them?

• square and triangle

• rectangle and triangle

• cone and rectangle

What are the attributes?

• 6 sides and 6 vertices

• 5 lines and 5 corners

• yellow

This shape has 0 sides and 0 vertices.

• a. defining

• b. non- defining

What are the attributes?

• pink

• 3 lines and 4 points

• 4 sides and 4 vertices

Look at these two figures. How are these figures different?

• The first figure is not a polygon and the second figure is a polygon.

• One figure is a closed figure and the other figure is an open figure.

• One figure is a 2D figure and the other figure is a 3D figure.

In front of a school there is a crosswalk warning sign like the one pictured. How many vertices does the crosswalk warning sign have?

• 5 vertices

• 4 vertices

• 6 vertices

Mrs. Smith has 6 squares. She showed her second grade class how to make a three-dimensional figure using these two-dimensional shapes. Which three-dimensional figure could Mrs. Smith have made using 6 squares?

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