PSA9CXG - Student-Facing Tasks---7.1 Lesson 11: Scales without Units ( 7.G.A.1)
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Part A)

A map of a park says its scale is 1 to 100.

 

What do you think that means?

 

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Part B)

Give an example of how this scale could tell us about measurements in the park.

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Part A)

Your teacher will give you a drawing of the Apollo Lunar Module. It is drawn at a scale of 1 to 50.

 

The “legs” of the spacecraft are its landing gear. Measure the legs on the drawing to find the actual length of each leg on the sides.

 

After measuring and solving for the actual length, write your answer to the nearest 10 centimeters.

 

Do not include units (centimeters) in your answer.

 

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Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

Explain or show your reasoning.

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Part C)

Use the drawing to estimate the actual height of the Apollo Lunar Module.

 

After measuring and figuring out the actual height, round to the nearest 10 centimeters.

 

Do not include units (centimeters) in your answer.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part D)

Explain or show your reasoning.

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Part E)

Neil Armstrong was 71 inches tall when he went to the surface of the moon in the Apollo Lunar Module. How tall would he be in the drawing if he were drawn with his height to scale?

 

Do not include units (inches) in your answer.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part F)

Show your reasoning.

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Part G)

Sketch a stick figure to represent yourself standing next to the Apollo Lunar Module. Make sure the height of your stick figure is to scale. Show how you determined your height on the drawing.

 

Draw your stick figure next to the lunar module, take a picture, and upload it using the image upload icon

 

If you do not have the ability to upload an image of your work type "Drawing is on paper."

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Part A)

A rectangular parking lot is 120 feet long and 75 feet wide.

  • Lin made a scale drawing of the parking lot at a scale of 1 inch to 15 feet. The drawing she produced is 8 inches by 5 inches.
  • Diego made another scale drawing of the parking lot at a scale of 1 to 180. The drawing he produced is also 8 inches by 5 inches.

 

Explain or show how each scale would produce an 8 inch by 5 inch drawing.

 

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Part B)

Make another scale drawing of the same parking lot at a scale of 1 inch to 20 feet.

 

Draw your scale drawing on paper, take a picture, and upload it using the image upload icon

 

If you do not have the ability to upload an image of your work type "Drawing is on paper."

Type your answer below:
Part C)

Explain your reasoning.

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Part D)

Express the scale of 1 inch to 20 feet as a scale without units.

 

Type your answer in the format:

 

3:4

 

with no spaces.

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Part E)

Explain your reasoning.

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Part A)

Andre drew a plan of a courtyard at a scale of 1 to 60. On his drawing, one side of the courtyard is 2.75 inches.

 

What is the actual measurement of that side of the courtyard? Express your answer in inches.

 

Do not include units (inches) in your answer.

 

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Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

Express the actual measurement of that side of the courtyard in feet.

 

Do not include units (feet) in your answer.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part C)

If Andre made another courtyard scale drawing at a scale of 1 to 12, would this drawing be smaller or larger than the first drawing?

Select one:
Part D)

Explain your reasoning.

Type your answer below: