Polya Problem Solver
Where this tool comes from
How to Solve It
The Hungarian mathematician George Pólya, teaching at Stanford, published How to Solve It in 1945.
One thing to hold: A list of four steps: understand the problem, make a plan, carry out the plan, look back.
Why it matters: “Look back” is the step people skip — checking the answer and asking what else the same idea could solve.