Comparing Positive and Negative Numbers in Real World Situations Using a Number Line

This video tutorial teaches how to compare positive and negative numbers using a number line. It explains the placement of numbers on a number line, addresses common mistakes with negative numbers, and uses real-world examples like thermometer readings and submarine depths to illustrate these concepts. The lesson emphasizes understanding the direction and value of numbers relative to zero.

What is the position of positive numbers on a number line?

• Below 0

• Above 0

• To the right of 0

• To the left of 0

Which number is greater: 1 or -6?

• Cannot be determined

• 1

• They are equal

• -6

Why might someone incorrectly think -7 is greater than 3?

• They ignore the negative sign

• They compare absolute values

• They use a vertical number line

• They consider 7 as a positive number

On a vertical number line, where are negative numbers located?

• To the right of 0

• Down from 0

• Up from 0

• To the left of 0

Which thermometer is warmer: A at -5 degrees or B at -2 degrees?

• Thermometer A

• They are the same

• Cannot be determined

• Thermometer B

Which submarine is deeper: A at 13.5 feet below sea level or B at 5 feet below sea level?

• Submarine A

• Submarine B

• They are at the same depth

• Cannot be determined

What does the inequality -5 feet > -13.5 feet imply about the submarines?

• Submarine A is deeper

• Submarine B is shallower

• Submarine A is shallower

• Submarine B is deeper