How to Measure Length 4th Grade
Using a ruler . . . • When you are using a ruler, the “0” mark on the ruler must be lined up with the edge of what you are measuring.
How long is the side of this box?
Using a ruler . . . • Sometimes when you use a ruler, the object is not exactly on the line. What do you do?
How long is the side of this box?
Metric Units • Most of the world measures in the METRIC SYSTEM. • 10 millimeters (mm) = 1 centimeter (cm) • 100 centimeters (cm) = 1 meter (m)
What would I use to measure … • The length of a fly?
• The length of a wall?
• The length of a crayon?