Chapter 2: Linear Equations Section 1: Using Graphs & Tables
Topics in Algebra 1 © 2001 Texas Instruments Teacher Notes 2-8
Activities
Scoring:
Students get
two attempts to solve
each problem. They earn
2 points for a correct
answer on the first try, 1
point for a correct answer
on the second try.
Students can earn up to
10 points.
Beam Dale Up
Tell students to:
1. Look at the problem on the space ship and determine how to
solve the equation for
x
from the four choices given. The
values are ordered as they are on a number line.
2. Press
!
and
"
to move Dale the Martian over the correct
x
value, and then press
b
. If the
x
value they pick is
correct, Dale is beamed up to his ship! As they play the
activity, students record the solution to each equation,
showing all steps and work. If the answer is incorrect on the
second attempt, the correct answer is displayed; press any
key to resume play.
3. Record their scores.
Note
: Press
|
or
~
to
leave this screen.
Worksheet Activity
Tell students to:
1. Look at the table of values of the expressions,
Y
1
=2X+4.5
and
Y
2
=7
.
2. Answer the questions: When is
2X+4.5=7
(or, when is
Y
1
=Y
2
)?
The solution is between which two
X
values?
The solution for
2X+4.5=7
is found between
1
and
1.5
.
Students will continue to search for the solution in the
³
Try-It!
section.
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