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# Massachusetts Comprehensive Assessment System

## 2012, Grade 3 Mathematics

Question 5: Open-Response
The table below shows the numbers of seashells that four children found at the beach.
 Child Number ofSeashells Bob 9 Carlos 9 Edwin 5 Fred 10
1. Complete the bar graph below by drawing bars to show the number of seashells each child found.
1. Use the data from your bar graph to write a sentence that compares the numbers of seashells the children found.

### 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 Data Analysis, Statistics, and Probability concepts involved in constructing bar graphs. The student constructs a bar graph and writes a comparison sentence about the data in the graph.
2
1 The student response demonstrates a fair understanding of the Data Analysis, Statistics, and Probability concepts involved in constructing bar graphs. 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 the Data Analysis, Statistics, and Probability concepts involved in constructing bar graphs to merit any points.

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

### Grade 3 Mathematics

Question 5:
Question 10:

Return to the MCAS 2012 Student Work Directory

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