Chapter 3: Linear Functions Section 2: Slope Using Coordinates
Topics in Algebra 1 © 2001 Texas Instruments Teacher Notes 3-16
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.
Screen Cross
Tell students to:
1. Read the directions on the screen, and then press any key to
continue.
Note
: Repeat steps 2 and 3 for line segments 2 through 5.
2. Calculate the slope between the two points. Record their work.
3. Press
$
or
#
to view the choices for the slope (
UNDEF
=
undefined slope). When they think the correct slope is
displayed, press
b
. Record the endpoints and slopes for
each segment. The segments are different on each calculator
and each time the game is played.
4. Record their final score.
Scoring:
There are no
points awarded in the linked
version. Students must
answer correctly before the
next line segment is shown.
The player who reaches the
right side of the screen first
wins.
Linked Calculators Screen Cross
Tell students to:
1. Connect two similar calculators using a unit-to-unit cable.
2. Try to determine as quickly as possible the slope of the line
segment.
3. Select the slope as they did in Screen Cross.
4. The player who reaches the right side of the screen first wins.
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