Grade level: 5th – 6th grades
Skills: Percent increase/decrease
Related environmental issues: Energy
A wide range of industries has been threatened by the COVID-19 outbreak and the U.S. COAL industry is no exception.
The bar graph below shows coal consumption in the U.S.
By about what percent did coal consumption decrease from Q2 2019 to Q2 2020?
- 40%
- 50%
- 60%
Source: U.S. Energy Information Administration, Short-Term Energy Outlook October 2020
Answer 1
[Percent decrease]
(110 – 180 )/180 = – 38.89 = 40% decrease
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