What is the shape of solar panels?

Grade level: 4th -5th grades

Skills: Identify shapes / Volume

Related environmental issues: Energy 


Jacob’s family just installed solar panels at home to generate electricity from solar energy. The figure below shows one of the solar panels they have.


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  1. Name the shape of the solar panel.
  2. Write down the number of vertices, sides, and faces of the solar panel.
  3. Find the volume of the solar panel.


Answer keys

1.rectangular prism
2. 8 vertices, 12 sides, and 6 faces
3.160 x 80 x 4 = 51,200 (cm3)


Factual 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 uniformed decisions and ultimately help develop their critical thinking skills. (Read more)

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Published: March 26, 2020

Price: $6.25

In which state do you need to pay more to play video games, Hawaii or NY?

Grade level: 4th – 5th grades

Skills: Bar graphs

Related environmental issues: Energy

The price of electricity varies widely from area to area. This is because the type and the price of energy sources each area uses to generate electricity are different. The bar graph below shows the average electricity price for playing video games for 5 hours in seven states in November 2019.

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  1. 1.In which state do you need to pay more than 30 cents to play video games for 5 hours?
  2. It costs about _____ cents more to play video games for 5 hours in Alaska than in Indiana.
  3. Among the seven states, which is the third most expensive state to play video games?


Source: U.S. Energy Information Administration, 2020. Electric Power Monthly

Note: It is using per kW electricity price

Answer keys





The 225 Math Quizzes That Will Make You An Environmental Expert (2019) is available from Amazon.com.  (paperback)

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