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Measuring
Geometric Objects [4.1.4.E.2] [Open-ended Question]
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Veronica is making a rectangular garden. She plans to put
a fence around the garden using 28 feet of fencing, and she
wants the garden to be 8 feet long.
- How wide will Veronica's garden be? Show how you got your
answer.
- If Veronica is going to put fence posts two feet apart
around the outside of the garden, how many fence posts will
she need? Show all of your work to explain your answer.
Scoring rubric
3 points
The student correctly demonstrates that Veronica's garden will
be 6 feet wide and that a total of 14 fence posts are needed
to go around the outside of the garden. The student provides
accurate work to support his/her answers.
2 points
The student correctly finds how wide Veronica's garden will be
and that 14 fence posts are needed.
OR
The student correctly finds how wide Veronica's garden will be
and shows his/her work. The student finds the incorrect number
of fence posts due to a minor error in his/her work.
1 point
The student finds how wide Veronica's garden will be. No other
work or explanation is shown.
The response shows limited understanding of the essential mathematical
concepts.
0 points
The response shows insufficient understanding of the essential
mathematical concepts.
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