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)


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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Published: March 26, 2020

Price: $6.25

How high is a wind turbine?

Grade level: 5 – 6th grades

Skills: Radius, diameter, circumference & area of a circle

Related environmental issues: Energy

The average hub height of a wind turbine installed in the United States during 2015 was 82 meters. And The average rotor diameter of a wind turbine installed during the same year was 102 meters. What is the average overall height of a wind turbine installed during 2015?


Source: U.S. Department of Energy, 2016. 2015 Wind Technologies Market Report


Answer keys

133 meters