PSA9CW9 - Student-Facing Tasks---7.1 Lesson 10: Changing Scales in Scale Drawings (7.G.A.1)
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Part A)

If a student uses a ruler like this to measure the length of their foot, which choices would be appropriate measurements? Select all that apply.

 

The ruler measures inches and centimeters. The inches are broken into eighths and the centimeters are broken into tenths.

 

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Part B)

Here is a scale drawing of an average seventh-grade student's foot next to a scale drawing of a foot belonging to the person with the largest feet in the world. Estimate the length of the larger foot.

 

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Part A)

Here is a map showing a plot of land in the shape of a right triangle.

 

 

Your teacher will assign you a scale to use. On centimeter graph paper, make a scale drawing of the plot of land. Make sure to write your scale on your drawing.

 

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."

 

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Part B)

What is the area of the triangle you drew? Explain or show your reasoning.

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Part C)

How many square meters are represented by 1 square centimeter in your drawing?

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Part D)

After everyone in your group is finished, order the scale drawings from largest to smallest. What do you notice about the scales when your drawings are placed in this order?

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Part A)

Here is a scale drawing of a playground.

 

 

The scale is 1 centimeter to 30 meters.

 

Make another scale drawing of the same playground at a scale of 1 centimeter to 20 meters.

 

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."

 

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Part B)

How do the two scale drawings compare?

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Here is a scale drawing of a window frame that uses a scale of 1 cm to 6 inches.

 

 

Create another scale drawing of the window frame that uses a scale of 1 cm to 12 inches.

 

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."

 

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