Chapter 2: Linear Equations Section 2: Using Algebra
Topics in Algebra 1 © 2001 Texas Instruments Teacher Notes 2-19
Activities
(continued)
Scoring:
Points are
based on how quickly
students solve each
equation.
Unless you specify point
or time limits for this
activity, students can play
the activity when four
missed equations stack
up, or they press
á
QUIT
â
to stop. There is no time
limit.
Free Fall
Tell students to:
1. Highlight a level (silver = less difficult; gold = more difficult),
and press
b
to select it.
2. When they are ready to start, press any key.
3. Watch the equation as it falls, and quickly solve for
x
. Enter
the solution (press Ì for negative numbers), and press
b
before the equation hits bottom. If students give an incorrect
answer, the correct answer is displayed; press any key to
resume play. The incorrect equation stacks up at the bottom
of the screen, giving them less time to solve the next equation.
4. Follow your instructions. For example, students can play:
•
Until they have answered incorrectly four times (no time
limit).
•
Until a certain amount of time has expired (highest score
with the fewest misses wins).
•
Until a certain score has been reached
(first student to
reach the score with the fewest misses wins).
•
Repeatedly over a period of time (days, weeks, etc.) for
tracking improvement of high scores.
5. Record the level they played.
6. Record their scores.
³
Try-It!
é
on Your TI
.
83 Plus or TI
.
73
Tell students to:
•
Solve the following equations by hand and show all of their work.
•
Test their solutions using the calculator as shown in the
³
Try-It! example on the previous
page.
1. x
N
(
M
4) = 12
when
x = 8
2.
3
4
W
N
1
4
=
M
5
8
when
W =
M
1
2
3. 5.25 + P =
M
3.5
when
P =
M
8.75
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