What does a ratio compare?

A ratio compares two or more quantities or numbers.

List the three ways to write a ratio.

The three ways to write a ratio are using a colon, in fractional form, or using the word 'to'.

Why is order important when writing a ratio?

Order is important because it determines which quantity is being compared to which. Changing the order changes the ratio.

What is the difference between a part-to-part ratio and a part-to-whole ratio?

A part-to-part ratio compares one part of a group to another part of the same group, while a part-to-whole ratio compares one part of a group to the total amount in the group.

Ratios and examples

6th GradeMath45 min

aligned to 6.rp.1

Learning Objective

I can explain what a ratio is and give examples of ratios.

Lesson Flow

Watch Video

7 min

An Intro to Ratios | What is a Ratio? | Understanding Ratios | Math with Mr. J

Math with Mr. J

Guided Notes

9 min

Key concepts students will learn:

•
A ratio compares two or more quantities or numbers and shows the relationship between them.
•
Ratios can be written using a colon, in fractional form, or using the word to.
•
When writing ratios, order is very important; for example, a ratio of bananas to pineapples is not the same as pineapples to bananas.

Practice

14 min

9 questions • Multiple choice & Short answer

Exit Ticket

5 min

“There are 5 cats and 6 dogs. What is the ratio of cats to dogs? Write the ratio using a colon.”

Teacher Guide

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Answer keys for all questions
Differentiation strategies
Extension activities
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Ratios and examples

Learning Objective

Lesson Flow

Watch Video

Guided Notes

Practice

Exit Ticket

Teacher Guide

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