Many web sites post weekly problems for many grade and ability
levels. Here are a few selections.
Win a Casio Calculator!
University of Central Florida Mathematics Education Program
hosts a math problem of the week contest. Different problems for
elementary, middle, and high school.
Brain Teasers - Houghton Mifflin sponsored
puzzles for early elementary, upper elementary, and middle school.
Forum Problems of the Week - Grades
3-12. POWs are designed to provide creative, non-routine challenges
for students in grades three through twelve. Problem-solving and
mathematical communication are key elements of every problem.
for POW - Teachers, students or classes
can become a mentor for Problems of the Week. Mentors volunteer
to reply to solutions submitted by students in grades six to nine.
For students and classes, being a mentor increases skill in discussing
their problem-solving techniques and is an incredible learning