McGraw Hill
Glencoe: Self Check Quizzes 2 Problem Solving Plan
Use Glencoe's randomly generated self-checking quiz to test your knowledge of problem solving. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It" button and...
Maths Challenge
Maths challenge.net: Problem Solving Database
Need some challenging problem-solving work for your students in the following areas: Discrete, Geometry, Numbers, and Code Breaking? This is the place for an enormous database of problems aimed at high school age students. They are...