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Lesson 96- Effects of Changing Dimension

Author:sharas, annemarie.grayburn
How does changing one dimension affect the area of a figure?

If you double just the base or the height of a rectangle, what do you think will happen to the area?

  1. Choose a base and a height
  2. Double one, either base or height
  3. How did the area change?

Rectangle

Give an example of what happened:

  1. What base/height did you start with?
  2. What area did you start with?
  3. What was the area after you doubled either base or height?
  4. Describe the change in area.

If you double just the base or the height of a triangle, what do you think will happen to the area?

  1. Choose a base and a height
  2. Double one, either base or height
  3. How did the area change?

  • Triangle

    Give an example of what happened:

    1. What base/height did you start with?
    2. What area did you start with?
    3. What was the area after you doubled either base or height?
    4. Describe the change in area.

    If you change the side length of a square or the radius of a circle, how will the area change?

    These side lengths will not change in the activity.

    Square

    Give an example of what happened:

    1. What base/height did you start with?
    2. What area did you start with?
    3. What was the area after you doubled either base or height?
    4. Describe the change in area.

    Comparing two different dimensions verses two of the same.

    Does changing just base or height affect area the same as changing a side in a square or radius in a circle?

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