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Massachusetts Comprehensive Assessment System

2011, Grade 6 Mathematics

  Question 17: Open-Response no calculator allowed
Paige, Rosie, and Cheryl each spent exactly $9.00 at the same snack bar.
  • Paige bought 3 bags of peanuts.
  • Rosie bought 2 bags of peanuts and 2 pretzels.
  • Cheryl bought 1 bag of peanuts, 1 pretzel, and 1 milk shake.
  1. What is the cost, in dollars, of 1 bag of peanuts? Show or explain how you got your answer.
  2. What is the cost, in dollars, of 1 pretzel? Show or explain how you got your answer.
  3. What is the total number of pretzels that can be bought for the cost of 1 milk shake? Show or explain how you got your answer.

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

ScoreDescription
4 The student response demonstrates an exemplary understanding of the Patterns, Relations, and Algebra concepts involved in solving linear equations using concrete models, tables, and paper-pencil methods. The student uses his or her solution to solve a problem.
4
3
The student response demonstrates a good understanding of the Patterns, Relations, and Algebra concepts involved in solving linear equations using concrete models, tables, and paper-pencil methods. Although there is significant evidence that the student was able to recognize and apply the concepts involved, some aspect of the response is flawed. As a result the response merits 3 points.
2
The student response demonstrates fair understanding of the Patterns, Relations, and Algebra concepts involved in solving linear equations using concrete models, tables, and paper-pencil methods. While some aspects of the task are completed correctly, others are not. The mixed evidence provided by the student merits 2 points.
1
The student response demonstrates only minimal understanding of the Patterns, Relations, and Algebra concepts involved in solving linear equations using concrete models, tables, and paper-pencil methods.
0
The student response contains insufficient evidence of an understanding of the Patterns, Relations, and Algebra concepts involved in solving linear equations using concrete models, tables, and paper-pencil methods to merit any points.

Note: There are 2 sample student responses for Score Point 4.

Grade 6 Mathematics

Question 10: Measurement
Question 17: Patterns, Relations, and Algebra

Return to the MCAS 2011 Student Work Directory



Last Updated: September 30, 2003
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