Table of Contents > Cluster 1 > Open-ended Items > Sample 2

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Standard 4.1, Grade 6, Strand A, Indicator 7

Develop and apply number theory concepts in problem solving situations.

  • Primes, factors, multiples

  • Common multiples, common factors

Sample Open-ended Item #2


Sample Item

Maurice and Aldo both go to the same library.  The last time they saw each other was last Thursday.  Maurice goes to the library every seven days.  Aldo goes to the library every five days.  

  • How many days, from their last meeting, will they both be at the library together? 

  • Show how you arrived at your answer.

Sample Responses

Click on a link below to view individual student responses and scorer comments to this sample test item:

"0" Response | "1" Response | "2" Response | "3" Response | Top


"0" Response

This response scored a "0" because it doesn't show knowledge of patterns, systems, or least common multiple.

  "0" Response | "1" Response | "2" Response | "3" Response | Top


"1" Response

This response scored a "1" because it began a chart but didn't follow through to get an answer.

  "0" Response | "1" Response | "2" Response | "3" Response | Top


"2" Response

This response scored a "2" because it uses appropriate knowledge of repeated systems, but it does not show the math used to solve the problem. It forces the scorer to infer that one of the boys goes to the library every Thursday.

  "0" Response | "1" Response | "2" Response | "3" Response | Top


"3" Responses

These responses scored "3" because the students used the principle of lowest common multiple to help solve the problem, and the answers show knowledge of pattern recognition.

"0" Response | "1" Response | "2" Response | "3" Response | Top


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