Pegging Down Area

Student Work

Student Work: Developing 4 points

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Area Rubric

 

4

3

2

1

Visual Accuracy

draws a rectangle that matches the specified measurements AND labels the length and width on the diagram

draws a rectangle that matches the specified measurements

draws a rectangle where its length OR width is inconsistent with the specified measurements

draws a rectangle where its length AND width are inconsistent with the specified measurements

Mathematical Accuracy

correctly identifies the areas for both shapes shown, including an accurate label ("square units")

finds the correct areas

correctly identifies the area for one shape shown

unable to correctly identify the area for any shape shown

Written Communication

provides an explanation (using numbers or words) of how he/she found the areas in a way that the reader immediately understands

provides an explanation (using numbers or words) of how he/she found the areas in a way that the reader understands after rereading

provides an explanation that, due to sloppy writing or unclear language, is confusing to the reader

provides an explanation that fails to show the student's basic understanding of how to find area

Comments:

I see that you followed all the directions and you remembered to label your answers with "s.u.". You need to check your work for accuracy. For example: You drew a rectangle that was 12 units by 8 units, not 11 by 8. 12 × 8 = 96, not 106. I don't know how the second equation (11 × 7 = 77) relates to the area of the triangle. When we conference, you can explain your thoughts to me.


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Updated: September 8, 2009
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