Problem Solving 

Brain Teasers
Comments:  Brain teasers are both entertaining and mentally challenging.  Each Wednesday evening a new problem will be provided at three different grade ranges (3-7+).  Hints are also given to help the students solve the problem. May also be printed.

Chess for Kids
Comments: This ThinkQuest site explains the game of chess so clearly that even adults could learn how to play by reading it.

Christmas Toys
Comments: Using hyperstudio the students will estimate the cost of several items and try to stay within their $200 budget.

Meet Aunty Math 
Comments:Have fun solving challenges. Figure out the problem and tell what strategy you used to get the answer. 

NRICH Online Math Club
Comments: On-line problem solving for all ages. Printable pages for math center use.

PlaneMath
Comments:This site has nine online activities on airplane capacity, t ime zones, flight planning and more. In cooperation with NASA.

Problem of the Week/ Brain Teasers
Comments: This site contains challenging math problems that students can solve. It gives hints, as well as the solution.  The problems could serve as a daily or weekly problem solving challenge.

Terry the Taxi Driver 
Comments: Students help Terry the New York Taxi Driver with his math problems. Students can use an "on-line" calculator to do the arithmetic. Reminders to estimate or round are given. Wrong answers are given hints. Links to other types of puzzles and games.