Once the write-up is finished, do not close your exercise book. There is one last stage — the one that distinguishes those who learn from those who merely hand in.

In brief — Three things to do at the end

  1. Check the result. Does it make sense? Is it consistent with the data? Substitute the solution back into the equation or into the hypotheses: does everything work out?
  2. Reflect on the method. What was the key idea? At which point did you understand how to proceed? Is it a move you could reuse in the future?
  3. Try to extend it. What if you changed a piece of data? What if the rectangle were a square? What if the triangle were not isosceles? Does the result still hold? Which hypothesis is truly necessary?

Topics: Working method
Concepts: Problem solving · Checking the result