Pegging Down Area

Teacher Exemplar

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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:

The exemplar meets all the attributes for a score of 12 points. I anticipated how a student would answer the questions using both calculations and verbal explanations. I can compare student work to my own product to aid me in assigning an appropriate score.


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Updated: September 8, 2009
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