Determine the Unit Rate-Cost for ONE | 6.RP.A.2

The video tutorial explains how to determine the unit rate, which is the cost per single item. It uses examples from 1999 and 2018, where the US Postal Service sold stamps at different prices. The tutorial guides viewers through calculating the unit rate for each year using division and proportion. In 1999, the unit rate was $0.33 per stamp, while in 2018, it was $0.50 per stamp. The video concludes by summarizing the change in unit rates over the years.

Explain how to find the unit rate for one stamp using the information from 1999.

Describe the process of setting up equivalent ratios to find the unit rate.

What is the unit rate in dollars per stamp for the US Postal Service in 1999?

How many stamps were sold by the US Postal Service in 2018?

What was the total cost for 12 stamps in 2018?

What was the unit rate in dollars per stamp for the US Postal Service in 2018?

Compare the unit rates of stamps in 1999 and 2018. What do you notice?