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Sunday, 18 September 2016

Locker Problem Explanation Reminders

Here are some friendly reminders for your locker problem explanation.

You must explain HOW you solved the problem. This includes telling me, in logical order, what you did to solve the problem

After that you must explain, using appropriate math vocabulary, WHY your answer works. 

You must have a visual that helps explain your answer.

Remember to refer to the rubric as you complete your response.
1: Below Expectation
2: Approaching Expectation
3: Meeting Expectation
4: Exemplary
  • Solution is not presented
  • Student uses a representation that is not appropriate to the problem
  • No steps used in solving are described
  • Math reasoning and concepts are not explained
  • Math vocabulary is not used
  • A solution is presented
  • Student uses a representation (picture, table, diagram, and/or algorithms) to organize thinking
  • Steps used in solving are described
  • Some math reasoning and concepts are explained
  • Some math vocabulary is used appropriately in explanation
All of the following are present:
  • Correct solution is presented or incorrect solution is presented as the result of a minor computational error
  • Student uses an appropriate representation (picture, table, diagram, and/or algorithms) to organize thinking
  • All steps used in solving are clearly described in logical order
  • All math reasoning and concepts are clearly explained
  • Precise math vocabulary is used appropriately in explanation
All of the following are present:
  • Correct solution is presented
  • Student uses an appropriate representation (picture, table, diagram, and/or algorithms) to organize thinking
  • All steps used in solving are clearly described in logical order
  • All math reasoning and concepts are clearly explained
  • Precise math vocabulary is used appropriately in explanation
  • Students make a connection or interesting observation about the problem
  • Student presents another way of solving the problem and/or presents thoughtful critique of another way


The format below can help you get started with your writing if you become stuck.

1. Summarize the problem: What is the problem about & what did it ask you to do?
a. This problem involves…
b. This problem is about...

2. Solution: What did you do and why did you do it?  What is your final answer?
a. First I…because…
b. Then I… because…
c. I realized… because…
d. My final answer is...

3. Is there another way to solve the problem?

4. Share any connections or questions you have


All of this information can always be found on the Mathematical Explanations tab of my website!

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