# Measurement: Inches

Contributor: Samantha Penna. Lesson ID: 11817

What are all those lines on your ruler? Most likely, there is at least one set that measures "inches." There are different-length rulers that measure inches, so learn how to use them around your home!

categories

## Elementary, Elementary

subject
Math
learning style
Kinesthetic, Visual
personality style
Lion
Primary (K-2)
Lesson Type
Quick Query

## Lesson Plan - Get It!

Audio:

When you hear or read how long something is, you probably hear the word, "inches," as in, "This inchworm is one inch long." How do we measure inches?

The two tools that you can use to measure inches are a ruler and a tape measurer.

Both rulers and tape measurers have inches on them to help you measure. During this lesson, you will learn how to measure with a ruler and a tape measurer.

If you missed the first lesson in our Measurement series, you will find it in the Related Lessons in the right-hand sidebar.

Take out your ruler and your tape measurer now. Look at the side of the ruler that says, "IN" or "Inches." This lesson is going to focus on using inches (IN) to measure objects. Take a look at the inch side of your ruler. What number does it start with, and what number does it end with? Tell your parent or teacher:

The average ruler starts with zero (0) inches and ends with twelve (12) inches. You can use your ruler to measure objects that are smaller than twelve inches. You can use your tape measurer to measure objects that are larger than twelve inches. An inch is a customary measuring unit that is bigger than a centimeter.

First, you will start by using your ruler. Find one object in your learning space that is smaller than twelve inches long.

Place your object so the beginning of the object lines up with the zero on the inch side of your ruler. Use the example below to help you. Do you see how the pencil tip is lined up at the zero? If you look at where the pencil ends (the eraser), you can see that it ends on seven (7). The pencil is seven inches long. Another way to write seven inches is to write 7 IN.

1. Find a small chair in your learning space.
2. Use your tape measurer to measure the chair.