Using an Inch Ruler

Andy is really hungry.

He buys a sandwich for lunch.

It is quite a long sandwich! 😋

Can you guess how long the sandwich is?

It looks like it's 1 foot long! 😋

Andy wanted to be sure about the length of the sandwich.

So he got a ruler, and **laid the sandwich across it**.

He made sure to **start at zero**.

Then, he **looked at the end **of the sandwich, and checked which number it was level with.

What number did he see?

12! That's 12 inches.

✅ 12 inches is the same as 1 foot. 😃

An inch ruler is marked by long lines with the numbers 1 to 12 written below each line.

The distance from one long line to the next long line is **1 inch**.

The distance from 0 to 1 is 1 inch.

The distance from 0 to 2 is 2 inches.

This goes all the way up to 12 inches.

Did you notice that there are shorter lines in between the 1-inch lines?

What could they mean? 🤔

Let's say you're measuring the length of a candy.

Its end is level with the long line that's between 6 and 7.

What's the length of the candy?

The lines halfway between two 1-inch markings are **values that show 1/2 of an inch**.

✅ If the end of the candy falls right in the middle of 6 and 7, then its length is **6 and 1/2 inches**.

**1/4 Values**

Take a look at this pencil.

Its end is level with the line that's in the middle of the markings for 7 inches and 7 1/2 inches.

What is its length?

Shorter lines that are halfway between a whole number and a 1/2 mark represent **values that are 1/4 of an inch**.

✅ So the length of the pencil is **7 and 1/4 inch**.

Let's say we have another pencil.

This pencil is a bit longer than the other one.

What is its length?

Lines that are after 1/2 but before the next whole number represents **values that are 3/4 of an inch**.

✅ So the length of this pencil is **7 and 3/4 inches**.

Why don't you try the practice exercises? 💪

Teachers:

Create your own self-paced, self-grading lessons.

Try our Lesson Builder tool!Unlimited Student Learning

Award-winning self-paced lessons • Adaptive technologies fill gaps in knowledge • Individual student profiles • Progress tracking • AI learning tools like the popular 'Part of Speech Identifier'.

Teacher Tools

Assign time-saving, self-grading worksheets • Ensure no child falls behind with automatically assigned extra work • Use Clever login to auto-roster students • Great at school and at home. • Student analytics

Full Library Access

View and assign over 2,500 lessons written to grade and 20,000+ questions covering Common Core Standards in the growing library • Duplicate and improve on any existing lesson or worksheet, or make your own.

Parent

Teacher

Up to 5 students

$39.99 / Year

$6.99 / Month$3.33 / Month

You save $43.89 with the annual plan

7 day free trial