Refining Problem Solving Skills

Refining Problem Solving Skills

Math Mission

Opening

Math Mission

Critique diagrams of a ship’s journey through the Welland Canal, and revise your own diagram.

Critique and Revise

Work Time

Trade diagrams and critique each other’s work. Use the following questions to help guide your critique of another student's work.

  • Is the diagram understandable?
  • Are there ways that the diagram could show the information more clearly?
  • Is there anything in the diagram that is not correct?

Diagram of Welland Canal

Work Time

Diagram of Welland Canal

When you have finished critiquing your partner’s diagram, look at this diagram of the Welland Canal.

  • What does the diagram show?
  • Critique the diagram.
  • What does the title of the given diagram tell you?
  • What do the numbers along the vertical axis represent?
  • What do the numbers along the horizontal axis represent?
  • What does 0 mean?

Revise Your Work

Work Time

Revise Your Work

  • Revise your diagram based on your partner’s feedback and on any ideas you may have from looking at other diagrams of the Welland Canal.

Prepare a Presentation

Work Time

Prepare a Presentation

  • Prepare a presentation that explains the wonder of the the Welland Canal mathematically.

Challenge Problem

  • Critique the diagram of a different classmate. Take notes.

Make Connections

Performance Task

Ways of thinking: Make Connections

  • Take notes about other classmates’ approaches to revising their diagrams.

As your classmates present, ask questions such as:

  • What was the most helpful advice your partner gave you when critiquing your diagram? How did you use this advice to help you improve your diagram?
  • What elements were lacking in your original diagram? How did you incorporate these elements into your new diagram?
  • What is a strength of your diagram?
  • How might you still improve your diagram?
  • What advice would you give to help others improve their diagrams?

Reflect on Your Work

Work Time

Reflect on Your Work

Write a reflection about the ideas discussed in class today. Use the sentence starters below if you find them to be helpful.

From looking at other diagrams, I learned…

A revision I made to my diagram is…