Teaching notes for parents and teachers
How to teach it
Compare a ruler, measuring tape, scale, and measuring cup. Demonstrate the tool that suits the object and the requested unit.
Example to work through together
Use the model below as you explain the example. Have your student point to the quantities as you discuss them.
To measure a pencil in centimeters, align its end with 0 on a ruler and read the mark at the other end.
Ask your student
Are we measuring length, mass, or liquid volume?
If your student needs help
If the student selects by appearance, discuss what each tool can actually measure.