How big is the California wildfire?

Grade level: 3rd – 5th grades

Skills: Division

The California wildfire (August Complex Fire) is still growing and has burned 1,264 square miles as of September 18, 2020. 

The area of Manhattan is 34 square miles. About how many Manhattans can be contained in the August Complex Fire?  

A) 4

B) 20

C) 40

D) 100


Source: CAL FIRE (September 18, 2020) Statewide fire summary


Answer : C

1,264÷34≈40


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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

Which county had more COVID-19 deaths, Peru or the United States?

Grade level: 3rd – 5th grades

Skills: Bar graphs

Related environmental issues: COVID-19

Six months have passed since the COVID-19 was declared as a pandemic. The bar graph below shows the number of COVID-19 deaths per one million population of selected countries as of September 11, 2020.

  1. Which country had the most COVID-19 deaths per one million polulation?
  2. Which country had more COVID-19 deaths, Mexico or Spain?
  3. Per one million population, about how many people died from COVID-19 in the United States?
  4. The population of the United States is about 330 million. About how many people died from COVID-19 in the United States as of September 11, 2020?

Source) Real Clear Politics (September 11, 2020) Coronavirus (COVID-19) Global Death


Answer keys

  1. Peru  
  2. Spain
  3. About 600
  4. About 198,000 (600 x 330 = 198,000)

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)

Screen Shot 2020-04-02 at 10.20.25 AM
Screen Shot 2020-04-02 at 10.31.32 AM
Screen Shot 2020-04-02 at 10.31.38 AM
unknown-1

Published: March 26, 2020

Price: $6.25