4.1+Comparing+Fuel+Economy

02-03-09 FH Block- E

  **
 * Big Understanding:
 * Many important practical and mathematical applications involve comparing quantities of one kind or another; it is important to know which method to use and how we should use them.**


 * Essential Question

What methods are there for comparing things?**


 * Use gasoline and mileage data to help settle Madeline and Luis's argument.**

Madeline is right since 226 miles/15.5 gallons= 14.6 miles/gallon is less than 290/19 gallons= 15.3 miles/gallon and Madeline traveled more at her own distance.


 * Which car do you think is more fuel efficient on the highway? Explain how you decided and why you think you are correct?**

I think Madeline's car is more fuel efficient since you need more speed on the Highway and Madeline’s car is more can go more miles than Luis’s car in the same distance.


 * Follow Up- Would it make sense to use percents to settle this argument? If so how; if not, explain why?**

No, because it’s easier to just compare just the answers instead of using one more step to turn the numbers into percents.