Measuring LENGTH

When we measure length we are

looking at how far away something is, how tall or short it

is, etc.

The are 2 groups/categories

for length….Customary

and Metric

Customary length is what we use in

the United States. It includes inches, feet, yards, and

miles.

One inch is about the size of a small paperclip. It is the smallest customary

measurement.

One foot is about the length of a

piece of notebook paper.

One yard is about the length of a

regular baseball bat.

One mile is about the length of a 20 minute walk. (7 times around the

bus ramp at PCE)

12 inches=1 foot

3 feet = 1 yard

36 inches=1 yard

Metric length is what most of the world uses. It includes

millimeters, centimeters, meters,

and kilometers

A millimeter is about as thick

as a dime.

A centimeter is about the width

of your index finger.

Your arm span from finger to finger tip is

about a meter.

A kilometer is more than a half a mile. (About 4 laps around bus ramp @ PCE)

Choosing the right UNIT

The distance from your home to

school….Inches, Feet, or Miles?

The distance from your home to

school….Inches, Feet, or Miles?

Is a football about 1 foot

or 1 mile long?

Is a football about 1 foot

or 1 mile long?

Is a math book about 11 yards or 11 inches?

Is a math book about 11 yards or 11 inches?

Would you use a ruler or yard stick to measure the playground?

Would you use a ruler or yard stick to measure the playground?

Would you use a ruler or yard stick to measure the

width (thickness) of a book?

Would you use a ruler or yard stick to measure the

width (thickness) of a book?