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Problem of the Week

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The Problem of the Week is designed to provide students with an ongoing opportunity to solve mathematical problems. Each week, problems from various areas of mathematics will be posted here and e-mailed to teachers for use with their students from grades 3 and up.

POTW B, C & D now available in French, questions only.
For the French webpage, click the blue Français button on the left
or click the link below.
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Current Problems


(5/6 Problem B)
Creating Problems

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3/4 Problem A

5/6 Problem B

7/8 Problem C

9/10 Problem D

11/12 Problem E
E-mail

Information for Teachers

These problems may be used in a variety of different ways including:

  • posting the problems in a classroom,
  • discussing the problems with students, and
  • integrating the problems into the curriculum.

We know that teachers will use these problems in many creative ways!

Solutions to the problems will be sent out to teachers one week after the problems are e-mailed.

Current Problem Archive 2017-2018


Grade 3/4 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30
Grade 5/6 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30
Grade 7/8 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30
Grade 9/10 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30
Grade 11/12 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30

Solution Archive 2017-2018


Grade 3/4 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30
Grade 5/6 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30
Grade 7/8 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30
Grade 9/10 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30
Grade 11/12 Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18
Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27
Week 28 Week 29 Week 30

Problem and Solution Archive

Each of the following links is to a booklet containing all the problems from particular years with solutions. The problems are organized into strands, grouping problems into various areas of the curriculum. A problem often appears in multiple strands.

Grade 3/4 (Problem A)
Grade 5/6 (Problem B)
Grade 7/8 (Problem C)
Grade 9/10 (Problem D)
Grade 11/12 (Problem E)