Texas Instruments TI-73VSC Teachers Guide - Page 16

Activity, Part B, Wrap-up

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Number Sense 11 Activity 3: How Do You Measure Up? 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? © 1998 TEXAS INSTRUMENTS INCORPORATED

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Number Sense
Activity 3: How Do You Measure Up?
11
© 1998 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
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
L
2
.
a.
Display the List editor.
3
b.
If necessary, clear
L
2
.
$
to highlight
L
2
:
b
c.
Enter the heights in
L
2
. 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?