How many more/less people are flying in 2021?

[FACTFUL MATH] Grade level: 3 – 5th grades

Math skills: Bar graph / Average

Related Environmental issues: COVID-19

The bar graph below compares the number of people flying during the first week of May in 2019, 2020, and 2021 in the United States.

  1. In which year, did the least number of people fly?

2. Does more people fly in 2021 than in 2020?

3. Does more people fly in 2021 than in 2019?

4. On average, about how many more/less people are flying a day in 2021 than in 2019?

A. 800 B. 6,000 C. 800 thousand D. 6 million


ANSWER:

  1. 2020
  2. Yes
  3. No
  4. 3 (14,000 – 8,500) / 7≈ 800 (thousand) less people are flying in 2021 in a day

Source: US Transportation Security Administration, TSA checkpoint travel numbers 


Factful Environmental Math Problems (2020)

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

How many more electric vehicles were sold in Europe than USA in 2020?

[FACTFUL MATH] Grade level: 3 – 5th grades

Math skills: Circle graph

Related Environmental issues: Electric Vehicle

Globally, 3.2 million of electric vehicles (EVs) were sold in 2020 alone.

The circle graph below shows where those EVs were sold.

  1. How many EVs were sold in Japan?

2. About how many more EVs were sold in Europe than USA?


Note: EVs here include both BEV and PHEV

ANSWER:

  1. 3.2 million = 3,200 thousand 3,200 x 0.01 = 32 thousand
  2. 3.2 x (43 – 10)/100 = 1 million

Source: EV-volumes.com [https://www.ev-volumes.com]


Factful Environmental Math Problems (2020)

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