| Rater | Correctness P/E/N | Conceptual Understanding | Processes & Strategies | Communication | Verification |
| mh | P | 4 | 4 | 4 | NE |
Name: Lorna
Benchmark III, Grade Level 6, Strand - Geometry
Teacher Mrs. Huffman, Date April 20, 1999
Problem: Determine the area of the shaded region:
Lorna's response:
What I need to do to solve this problem: I need to figure out the area of the rectangle in the middle. If one side of the
small rectangle is 6 units and the opposite side is 3 units then the two sides should be 3. If the top side is eight and the
bottom is four then the middle one should be four on top and bottom.
My work: Area for the little rectangle: 3 x 4 = 12 sq. units.
Top rectangle: 6 x 8 = 36, bottom rectangle: 10 x 12 = 120 sq. units.
[Lorna shows all calculations.] 10 x 12 = 120 - 12 = 108 sq. units.
6 x 8 = 48 - 12 = 36 sq. units. 108 + 36 = 144 sq. units.
Answer: 144 sq. units.
Check: I know I got the same answer because I know.