Grade level: 4th – 6th grades
Skills: Multiplication/Division
Environmental Subject: Energy/Climate Change
California decided to ban sales of new gasoline vehicles in 2035 on September 24, 2020.

Ford F150 runs 20 miles and Toyota Prius runs 50 miles on one gallon of gasoline.You drive 200 miles a week. Which car costs more on gasoline and how much more money do you need to spend for gasoline a week if the gas price is $2 a gallon?
- Prius, $6 more
2) Prius, $12 more
3) F150, $6 more
4) F150, $12 more
Answer : D
Ford F150 uses [200÷20=10 gallons] of gasoline a week. It costs [$2 x10gallons= $20] a week.
Prius uses [200÷50=4 gallons] of gasoline a week.
It costs [$2 x 4gallons= $8]
Difference is [$20-$8=$12]




Factful Environmental Math Problems (2020)
Just published and now available from Amazon (paperback)
About this book
The objective of Factful Environmental Math Problems is to cultivate our young people’s skills to analyze and evaluate fact-based data for understanding our world, while improving their math skills and critical thinking skills. With the rise of the Internet and new technology, building skills to analyze and evaluate fact-based data becomes increasingly important for our young people to prepare for this rapidly changing world. These skills minimize their chances of being brainwashed by false information and making uninformed decisions and ultimately help develop their critical thinking skills. (Read more) Published: March 26, 2020 Price: $6.25