*Factful math: Grade 4th-6th*

*Math skills: Circumference*

*Related Environmental issues: Renewable Energy*

The world’s largest offshore wind turbine, Vestas V236-15.0MW, is big enough to power 20,000 households. The largest Ferris wheel in the United States is the High Roller in Las Vegas.

The circumference of the circled the wind turbine makes is how many times longer than that of the High Roller?

- 0.68
- 1.375
- 1.45

**ANSWER **2

(115.5 x 2 x r) / (168 x r) = 231 / 168 = 1.375

### 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)

Published: March 26, 2020

Price: $6.25