© 2000
T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-15: A Guide for Teachers
22
Related Procedures
(Continued)
Continuing the Investigation
Older students can investigate equivalent
procedures, such as dividing by a number and
multiplying by its reciprocal. For example, if a
student is exploring the relationship between
x ½
and
÷ 2
, the tables might look something like this:
Table for
›
Table for
œ
Input Procedure Output
1
P
2 0.5 =
5
/
10
=
½
2
P
21
3
P
2 1.5 = 1
5
/
10
=
1½
Input Procedure Output
1x½½
2x½1
3 x½ 1.5 = 1½
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