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Discuss with the students the material under Science Concept and
Teacher Text in this section. Make sure that each child has at least
some understanding of how Newton's Third Law of Motion works before doing
the experiment. (In this way the children will have a greater awareness
of what is taking place when they actually do the experiment with the
skates and basketball.)
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Proceed outside and talk about safety first in doing the experiment.
Make sure that the students understand that they will not push anyone on
skates, etc.
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Pair the students up and explain what they will be doing during the
experiment.
(Each student will have their own turn). The student will roll backward
with their roller skates. Then, the student will toss a basketball hard.
The ball goes one way, and as you push the ball away, you move away in
the opposite direction.
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After the students have finished taking a turn with the basketball
while on their skates, return to the classroom and discuss what they have
experienced.
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Ask the older students to write a short paper on what they
experienced and how Newton's Third Law of Motion was at work during their
experiment.
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