Number Sense

Activity 3: How Do You Measure Up?

11

Activity—Part B

In this part, students discover the ratio of the average height of a student to the average length of an intestine. Have students perform the steps unless otherwise indicated.

1.Measure height in centimeters or inches.

2.Enter the data in L2.

a.Display the List editor.

3

b.If necessary, clear L2.

$ to highlight L2

: b

c.Enter the heights in L2. Press b after each list item.

3.Find the average height on the Home screen using the mean function.

a.Return to the Home screen.

-l

b.Access the MATH menu and select mean.

-v" " [

c.Calculate the mean.

-v Z E b

4.Compare the average height to intestine length as a ratio.

Wrap-up

Ask students: How many average students would it take to make the length of an average intestine?

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