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1.
Have students spread out throughout the classroom as in the diagram.
·
Appoint one student to
be the “scribe”. The scribe
draws a diagram on the board representing the scattered students.
· Appoint one student to
be the “pointer”. He/she walks
between the students. ·
All other students
stand still. ·
The pointer stands
beside Student #1. He walks to
Student #5, counting his steps. He
says, “5 steps”, and the scribe writes 5 on a dashed line between Student #1
and Student #5 on the diagram. ·
The pointer then walks
from Student #5 to Student #4, counts the steps and says, “6 steps”.
The pattern continues. 2.
Ask the students if the direction in which the pointer walks has any
effect on the number of steps between students.
The number of steps is the absolute value of the steps taken.
Even if the pointer walked backward, the number of steps would remain the
same. Absolute value measures only
the number of steps, not direction. 3.
Students should read page 13 and 14 in Complete
Math 9 and complete the questions on page 14. |
|
amelia@mathbook.ca |
