Texas Instruments TI-73VSC Teachers Guide - Page 25

Wrap-up, Assessment Suggestions

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20 Using the TI-73: A Guide for Teachers Wrap-up ♦ Ask: Based on your observation of the graphs of the equations, what conclusions would you draw about the equations you graphed? Have students report findings. This could lead to a discussion of equivalent expressions and simplifying expressions. ♦ Have students substitute X = 57 in the equations to find a value for Y. This will also show the equivalency of the equations. Assessment Suggestions Have students repeat the above activity for the following situation. The architect designs the roof trusses with another design. It is made from equal lengths of steel beams arranged in the form of equilateral triangles, as in the diagram below. 1 length 2 lengths 3 lengths Note that one more length is always in the bottom of the trusses than on the top. Patterns and Relations © 1998 TEXAS INSTRUMENTS INCORPORATED

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20
Using the TI-73: A Guide
for Teachers
Patterns and Relations
© 1998 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
Wrap-up
♦
Ask:
Based on your observation of the graphs of the
equations, what conclusions would you draw about
the equations you graphed?
Have students report
findings. This could lead to a discussion of equivalent
expressions and simplifying expressions.
♦
Have students substitute
X
= 57 in the equations to
find a value for
Y
. This will also show the equivalency
of the equations.
Assessment Suggestions
Have students repeat the above activity for the following
situation.
The architect designs the roof trusses with another
design. It is made from equal lengths of steel beams
arranged in the form of equilateral triangles, as in the
diagram below.
1 length
2 lengths
3 lengths
Note that one more length is always in the bottom of
the trusses than on the top.