This week's Puzzler: LOCKER DILEMMA
MATH CONTEST: There are weekly problems to solve in varying levels. My favorite is the Elementary Brain Teaser. Send in your solutions and if correct, your name and solution get posted online. Let me know if that happens!
Math Olympiad Problem Solving: Great THINKING problems that change monthly. Correct solutions are shownat the end of the month.
Last Modified on September 3, 2013