Scientific Notation - Texas Instruments TI-34 II Explorer Plus User Manual

Star Voyage—Scientific Notation
Overview
Students investigate scientific notation by changing
numbers into scientific notation, and then using
them in calculations.
Introduction
Set up the activity by telling your students:
The standard form for scientific notation is a Q 10
where a is greater than or equal to 1 and less than
10, and n is an integer.
1. Have students practice writing the following
numbers in scientific notation using pencil and
paper.
a. 93 000 000
b. 384 000 000 000
c. 0.00000000000234
d. 0.0000000157
2. Have students change the following numbers into
scientific notation using the TI-34 Ö.
a. 12 000 000 000 000
b. 974 000 000 000
c. 0.0000000000034
d. 0.00000000004
3. Have students change the following numbers into
floating decimal (standard notation).
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a. 5.8 Q 10
5
b. 7.32 Q 10
-6
c. 6.2 Q 10
-8
d. 3 Q 10
© 1999 T I
EXAS NSTRUMENTS INCORPORATED
n
,
9.3 Q 10 7
3.84 Q 10 11
2.34 Q 10 -12
1.57 Q 10 -8
1.2 Q 10
13
9.74 Q 10 11
3.4 Q 10 -12
4 Q 10 -11
58 000 000
732 000
0.0000062
0.00000003
TI-34 Û: A Guide for Teachers
Math Concepts Materials
• TI-34 Û
• scientific
notation
• pencil
• addition
• student activity
• division (page 8)
 1. Enter the first number.
¸ ¸ 0000000000
2. Press < to display the
number in scientific
notation.
13
1. 2
x10
³ 1. Enter 5.8 and press C.
5.8¯
2. Enter 7 and press <.
5.8¯7
58000000.
Note: To enter a negative
number, press M and then
enter the number.
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