California to ban sales of new gasoline vehicle – how much money can you save if your car uses less gasoline?

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?

  1. 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]


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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

How many less miles do Americans travel amid the coronavirus pandemic?

Grade level: 4th – 6th grades

Skills: Subtraction and multiplication (decimals) 

Related environmental issues: Others

The majority of the world’s population has been under some type of stay-at-home orders due to the Coronavirus pandemic. Since those orders were issued, people have changed their habits and traveled less.

The table below shows the average travel distance of residents in Daytona beach, Florida, and Seattle, Washington, on February 28 and March 27, 2020.

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  1. Between February 28 and March 27, how many less miles did the average resident in Daytona Beach travel?
  2. Between February 28 and March 27, how many less feet did the average resident in Seattle travel? (1 mile = 5,280 feet)

 


 

Source: The New York Times, (April 2, 2020). Where America Didn’t Stay Home Even as the Virus Spread. 

 


 

Answer keys

1. 2.5 miles (4.4 – 1.9 = 2.5)
2. 20,003 feet (3.8 x 5,280 – 61 = 20,003)

 

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)

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Screen Shot 2020-04-02 at 10.31.38 AM

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Published: March 26, 2020

Price: $6.25