Scientific Notation; Star Voyage Scientific Notation - Texas Instruments TI-30X IIS 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-30X ÖS.
a. 12 000 000
b. 974 000 000
c. 0.0000034
d. 0.000000004
Note: Answers assume the default floating decimal
setting.
3. Have students change the following numbers into
floating decimal (standard notation).
a. 5.8 Q 10
7
b. 7.32 Q 10
c. 6.2 Q 10
-6
d. 3 Q 10
-8
To enter a negative number, press M and then
Note:
enter the number.
© 1999 T I I
EXAS NSTRUMENTS
9.3 Q 10
3.84 Q 10
2.34 Q 10
1.57 Q 10
1.2 Q 10
9.74 Q 10
3.4 Q 10
4 Q 10
58 000 000
5
732 000
0.0000062
0.00000003
NCORPORATED
Math Concepts
• scientific
• addition
• division
n
,
7
11
-12
-8
 1. Enter the first number.
7
8
-6
-9
³ 1. Enter 5.8; press % C.
TI-30X ÙS: A Guide for Teachers
Materials
• TI-30X ÙS
notation • pencil
• student activity
12000000
2. Press % d.
FLO SCI ENG
3. Press " < <.
12000000
07
1.2
x10
5.8¯
2. Enter 7; press % d.
FLO SCI ENG
3. Press !
.
FLO SCI ENG
4. Press < <.
5.8¯7
58000000.
6