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Re:Problem Solving Techniques by stevesimmons on Sunday November 08, 2020 @06:02PM (#25029919)
"Problem-Solving Through Problems" by Loren C Larsen (1983) was my favorite at high school.

The sections headings of Chapter 1 on Heuristics give a flavor of its approach: Search for a pattern; Draw a figure; Formulate an equivalent problem; Modify the problem; Choose effective notation; Exploit symmetry; Divide into cases; Work backward; Argue by contradiction; Pursue parity; Consider extreme cases; Generalize.

Links:

* Official Springer book web site: https://www.springer.com/gp/book/9780387961712

* Amazon: https://www.amazon.com/Problem-Solving-Through-Problems-Prob...

* Poor quality scanned PDF: https://math.la.asu.edu/~ifulman/spring13/mat194/problem-sol...

Re:Problem Solving Techniques by stevesimmons on Monday November 09, 2020 @04:16AM (#25032903)
I'll add that this book is well above normal high school math. It was our summer reading for Math Olympiad training.

I narrowly missed a place on the Australian IMO team, and at the time was annoyed at myself for being beaten by a 10 year old. He, of course, was Terry Tao, youngest ever winner of a IMO medal, and a Fields Medalist a few years later.