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# Massachusetts Comprehensive Assessment System

 Question 3: Open-Response Reporting Category: Measurement and DataStandard: Mathematics.3.MD.4.08 - Solve real-world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters. Ms. Shaw has a quilt that is in the shape of a rectangle. The quilt is 7 feet long and 6 feet wide, as shown below.What is the perimeter, in feet, of Ms. Shaw’s quilt? Show or explain how you got your answer. Perimeter: ____________________ feetMs. Garcia also has a quilt in the shape of a rectangle. Ms. Garcia’s quilt has the same perimeter as Ms. Shaw’s quilt but has a different area. What could be the length and the width, in feet, of Ms. Garcia’s quilt? Show or explain how you got your answer.  Length: ____________________ feet Width: _____________________ feet

### Scoring Guide and Sample Student WorkSelect a score point in the table below to view the sample student response.

ScoreDescription
2
The student response demonstrates an exemplary understanding of the Measurement and Data concepts involved in solving real world problems involving perimeters of polygons, including finding the perimeter given the side lengths and exhibiting rectangles with the same perimeters and different areas.
2
1
The student response demonstrates a fair understanding of the Measurement and Data concepts involved in solving real world problems involving perimeters of polygons, including finding the perimeter given the side lengths and exhibiting rectangles with the same perimeters and different areas. While some aspects of the task are completed correctly, others are not. The mixed evidence provided by the student merits 1 point.
0
The student response contains insufficient evidence of an understanding of Measurement and Data concepts involved in solving real world problems involving perimeters of polygons, including finding the perimeter given the side lengths and exhibiting rectangles with the same perimeters and different areas to merit any points.

Note: There are 2 sample student responses for Score Point 2.