User Manual

© 2006 TEXAS INSTRUMENTS INCORPORATED TI-30XS MultiView: A Guide For Teachers 3
Overview
Students investigate scientific notation by changing
numbers into scientific notation, and then using them in
calculations.
Math Concepts
• scientific notation
•addition
• division
Materials
• TI-30XS MultiView™
• pencil
• student activity
Introduction
Set up the activity by telling your students:
The standard form for scientific notation is
a
aa
a
¿ 10
1010
10
n
nn
n
,where a
aa
a is greater than or equal to 1 and
less than 10, and n
nn
n is an integer.
1. Have students practice writing the following
numbers in scientific notation using pencil and
paper.
a. 93 000 000
9.3 ¿ 10
7
b. 384 000 000 000 3.84 ¿ 10
11
c. 0.00000000000234 2.34 ¿ 10
-12
d. 0.0000000157 1.57 ¿ 10
-8
2. Have students change the following numbers into
scientific notation (SCI) using the
TI-30XS MultiView scientific calculator.
a. 12 000 000
1.2 ¿ 10
7
b. 974 000 000 9.74 ¿ 10
8
c. 0.0000034 3.4 ¿ 10
-6
d. 0.000000004 4 ¿ 10
-9
Note:
Note:Note:
Note: Answers assume the default floating decimal setting.
3. Have students change the following numbers into
standard (NORM) notation.
a. 5.8
¿ 10
7
58 000 000
b. 7.32 ¿ 10
5
732 000
c. 6.2 ¿ 10
-6
0.0000062
d. 3 ¿ 10
-8
0.00000003
Note:
Note:Note:
Note: To enter a negative number, press M and then enter
the number.
³ Follow these steps:
1. Enter the first number, 12000000.
2. Press
p.
3. Press
$ " < - <to
display the number in scientific
notation.
1.2Ã
ÃÃ
Ã10
7
³ Follow these steps:
1. Enter 5.8; press
C.
2. Enter 7; press
p.
3. Press
$ < - <.
58000000
Star voyage — scientific notation