Understanding Elevation and Depth

The video tutorial explains how to solve a problem involving Ethan's elevation in a canyon below sea level. It introduces the problem, models it visually, and discusses negative numbers. The tutorial uses clues to determine Ethan's possible elevation and eliminates incorrect options to find the correct answer. It concludes by encouraging viewers to review the material.

What is Ethan's activity in the problem?

• Walking in a desert

• Swimming in the ocean

• Climbing a mountain

• Hiking in a canyon

Where is Ethan's elevation in relation to sea level?

• Below sea level

• At sea level

• Above sea level

• On a mountain

What does a negative elevation indicate?

• Above sea level

• Below sea level

• On a mountain

• At sea level

If you are at -10 ft and go to -20 ft, what happens?

• You are on land

• You are at sea level

• You are deeper

• You are higher

What is the significance of the number -20 in the context?

• It is at sea level

• It is above sea level

• It is shallower than -10

• It is deeper than -10

What does the term 'deeper' refer to in this context?

• Above sea level

• Further below sea level

• On land

• Closer to sea level

Which number represents a deeper elevation: -10 or -20?

• -10

• -20

• 0

• 10

What is the range of Ethan's elevation from sea level?

• Within 200 ft

• Within 300 ft

• Within 100 ft

• Within 400 ft

What does the clue 'within 200 ft of sea level' imply?

• Ethan is below -200 ft

• Ethan is above 200 ft

• Ethan is between -200 ft and 200 ft

• Ethan is exactly at sea level

Why can't Ethan's elevation be -300 ft?

• It's above sea level

• It's at sea level

• It's too deep

• It's too shallow