Estimating and Measuring lengths

Front

What is length?

Back

Length is a measure of how long something is from one end to the other.

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CCSS.2.MD.A.3

Front

What tool do we use to measure length?

Back

We use a ruler to measure length.

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CCSS.2.MD.A.1

Front

What is the unit of measurement for small lengths?

Back

Centimeters (cm) are used to measure small lengths.

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CCSS.4.MD.A.1

Front

What is the unit of measurement for larger lengths?

Back

Inches (in.) are often used to measure larger lengths.

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CCSS.2.MD.A.3

Front

How do you read a ruler?

Back

You start at the end of the object and look at the number where the object ends.

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CCSS.2.MD.A.3

Front

What is an estimate?

Back

An estimate is a rough guess of a measurement.

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CCSS.2.MD.A.3

Front

If a pencil is about 10 cm long, what is a close estimate?

Back

A close estimate could be 9 cm or 11 cm.

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CCSS.2.MD.A.3

Front

What is the length of a standard paperclip?

Back

A standard paperclip is about 4 cm long.

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CCSS.2.MD.A.3

Front

How do you compare lengths?

Back

You can compare lengths by placing them side by side or measuring them.

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CCSS.2.MD.A.4

Front

What is the closest length of a typical eraser?

Back

A typical eraser is about 4 cm long.

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CCSS.2.MD.A.3