​LEARNING TARGETS

I can compute unit rates associated with ratios of fractions.

I can include ratios of lengths.

I can include area ratios.

I can include quantities measured in like units.

I can include quantities measured in unlike units. (inches to feet…)​

​Vocabulary

Rate

Unit Rate

Ratio

Fraction

Multiplicative Inverse​

​Essential Question

How do I interpret a unit rate mathematically using words?

What is a unit rate?

• used to compare quantities in which the second quantity is one

• The denominator in the fraction is ONE

• miles per hour

• earnings per hour

• cost per gallon

When finding the unit rate:

Calculating Unit Rate

• miles per hour

• words per minute

• miles per hour

• EXAMPLE:

• $40 for 5 pizzas. Find the price per pizza!

• $87 for 3 video games. Find the price per video game.

How to find the cheaper unit rate?

• Lots of items at the grocery store come in different sizes and cost different prices!

• To find the unit rate divide $ by ounces

• The 16 oz jar is .20 cents per ounce

• The 64 oz jar is .13 cents per ounce 

• Which jar is cheaper?

How to find the more expensive unit rate?

• Lots of items at the grocery store come in different sizes and cost different prices!

• To find the unit rate divide $ by ounces

• The 16 oz shampoo is .39 cents per ounce

• The 13.5 oz shampoo is .30 cents per ounce

• Which bottle is more expensive?