The Journal of Modern Problem Solving: A source of modern problem solving for students and teachers from grade school through grad school and beyond in all subjects that use mathematics for problem solving

Library-in-the-Sky Problem Solving Links Long list of links to problem solving activities, papers, and techniques; good resource.

Odyssey of the Mind: News, tips, facts

Problem Solving: Sample Problem-Solving Strategies

Problem Solving Skills Hotlist


Critical Thinking
Critical Thinking Skills: Explanations, exercises in critical thinking skills for advanced students
Math Problem Solving

How to Solve Problems: Why students can't solve word problems reliably; Learn to Solve Problems Now; Problem Solution Paths; Organization of A Problem Solution; Common Sense in Problem Solving; Making Sense of Story Problems

Math Problem Solving Resources


Puzzles

Puzzle Depot and Library: Crossword Puzzles, Cryptic Crossword Puzzles, Trivia Teasers, Puzzles, Metacrostics, Word Search Puzzles

Riddler