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IM: 7.5.1: Interpreting Negative Numbers (Lesson)

By Newsela Staff
Last updated 2 months ago
12 Questions
1.1: Using the Thermometer
Here is a weather thermometer. Three of the numbers have been left off.
1.

What numbers go in the boxes?

2.
What temperature does the thermometer show?

_______°C
1.2: Fractions of a Degree
3.
What temperature is shown on each thermometer?

A: _______°C
B: _______°C
C: _______°C
D: _______°C
4.

Which thermometer shows the highest temperature?

5.

Which thermometer shows the lowest temperature?

6.

Suppose the temperature outside is -4°C. Is that colder or warmer than the coldest temperature shown? How do you know?

1.3: Seagulls Soar, Sharks Swim
Here is a picture of some sea animals. The number line on the left shows the vertical position of each animal above or below sea level, in meters.
7.

How far above or below sea level is each animal? Measure to their eye level.

8.

A mobula ray is 3 meters above the surface of the ocean. How does its vertical position compare to the height or depth of:
  • The jumping dolphin?
  • The flying seagull?
  • The octopus?

9.

An albatross is 5 meters above the surface of the ocean. How does its vertical position compare to the height or depth of:
  • The jumping dolphin?
  • The flying seagull?
  • The octopus?

10.

A clownfish is 2 meters below the surface of the ocean. How does its vertical position compare to the height or depth of:
  • The jumping dolphin?
  • The flying seagull?
  • The octopus?

11.

The vertical distance of a new dolphin from the dolphin in the picture is 3 meters. What is its distance from the surface of the ocean?

Are you ready for more?
12.

The north pole is in the middle of the ocean. A person at sea level at the north pole would be 3,949 miles from the center of Earth. The sea floor below the north pole is at an elevation of approximately -2.7 miles. The elevation of the south pole is about 1.7 miles. How far is a person standing on the south pole from a submarine at the sea floor below the north pole?

1.4: Card Sort: Rational Numbers