Altitude Changes and Representations

The video tutorial explores a math and science problem involving altitude changes. It explains how altitude above sea level is positive and below is negative. The scenario involves a hiker starting at -20 feet and calculating her position after increasing altitude by 20 feet, reaching sea level. It further calculates the total altitude change needed to reach 60 feet above sea level, which is 80 feet. The tutorial emphasizes the importance of modeling and visualization for better understanding and problem-solving.

What skills does the problem in the video combine?

• Math and Science

• History and Geography

• Science and Art

• Math and History

How is altitude above sea level represented?

• As fractions

• As negative values

• As positive values

• As zero

What is the starting altitude of the hiker?

• 20 feet above sea level

• 60 feet above sea level

• 0 feet

• Negative 20 feet

What does the horizontal line in the model represent?

• Ground level

• Mountain peak

• Sea level

• Altitude

If a hiker starts at -20 feet and increases altitude by 20 feet, where does she end up?

• 20 feet above sea level

• 0 feet (sea level)

• 40 feet above sea level

• 60 feet above sea level

What is the total altitude change needed to reach 60 feet above sea level from -20 feet?

• 60 feet

• 40 feet

• 100 feet

• 80 feet

How many feet does the hiker need to climb from -20 feet to 0 feet?

• 40 feet

• 20 feet

• 80 feet

• 60 feet

How many feet does the hiker need to climb from 0 feet to 60 feet?

• 80 feet

• 20 feet

• 40 feet

• 60 feet

What is a helpful tool to understand altitude changes?

• A calculator

• A diagram

• A map

• A ruler

What is the final altitude of the hiker if she climbs 80 feet from -20 feet?

• 60 feet above sea level

• 40 feet above sea level

• 80 feet above sea level

• 100 feet above sea level