Introduction to Standard Measurement for Kids: Measuring Length in Inches with a Ruler
2 min1st2ndMath
Summary
An introduction to standard measurement: how to measure length in inches with a ruler, lining up the object at zero and reading the number.
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All ages
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Teaching resources
Discussion questions
A ruler measures length in standard units, like inches.
- Where do you line up an object to start measuring?
- Why are standard units like inches useful?
- How do you read the length off the ruler?
Quick work-a-long
Words to know: ruler, inch, standard unit
- Measure a crayon in inches with a ruler.
- Measure two objects and tell which is longer, and by how much.

