The use of non-standard units to measure 2D and 3D objects

Fill in the blank: A polygon is ______.

• a shape with three or more straight sides that is closed

• any 2D shape

• any 3D shape

• another name for shape

Which is NOT a polygon?

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True or False: It is possible to measure the perimeter and area of a 2D shape with nonstandard units

• True

• False

What would be an accurate unit of nonstandard measurement for a basketball?

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True of False: A pretzel stick can be used to measure a cube

• True

• False

What kind of 3D shape is this?

• rectangular prism

• cube

• cylinder

• cone

Which image is an example of a 2D shape?

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Estimate the length of your pencil box

• 1 paper clip

• 20 paper clips

• 50 paper clips

What if I asked you to measure the table with your hand, estimate how many hands long it could be.

• 2 hands long

• 5 hands long

• 20 hands long

True or False: a food item can be used to measure, and explain why.

• True

• False