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SCORE
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DESCRIPTION
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4
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Student's data are consistent, showing an increase
in swinging frequency (rate) as wire is shortened, and showing
that the rate stays nearly the same for the trials in which
weight is the variable. Individual response states that the
only thing that changes the rate of swing is changing the
length of the wire. The response shows that only one variable
was changed for each test. Student makes it clear that Marcia
and Kevin only had to make their swings equal length to have
the same rate of swing. Student identifies corresponding parts
of the swing and pendulum systems. |
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3
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Student's data sheet may show some errors in
measurement, but results are mostly accurate. Response shows
that the rate of swing varies due to the length of the wire.
Student's individual report correctly identifies length as
the only variable that changes the rate of swing, but the
statements may be somewhat confused. Student concludes that
the length of the swings must be changed to get equal rates,
but may not clearly say that the two swings must be the same
length. Student may only partially compare the pendulum and
swing systems. |
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2
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Student's data sheet is fair or
good, with errors that obscure the length of the wire as the
variable that determines the rate of swing. Response may show
evidence that variables were not controlled. Student's may
conclude that changing the weight changes the rate. Student's
solution for getting the swings to go at the same rate is
unclear or wrong. Comparison of the two systems is incomplete
or missing. |
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1
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Student's data sheet may have some
correct measurements, but is incomplete, and does not show
expected result. Student's individual work shows minimal understanding
of the group's data. Conclusion, if reached, is not justified. |
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0
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Response is totally incorrectly or irrelevant. |
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Blank
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No response. |
