Imagine a Story ...
“In Kim’s chem class the professor assigned
challenge problems worth extra credit, but
each week Kim couldn’t do them and
asked for help. The teacher said, ‘Don’t
give up, attempt the problem again each
day.’ Kim followed the advice and was
able to solve the problems.”
Abstracting from the situation: A good
problem-solving technique is to return to
problem.
Some aspects are relevant
Some aspects are irrelevant