This category includes site containing weekly or monthly problems. Every week or month, new problems will be given out and students will have some time to work on the problem. Solutions will be posted at the end of the week or month while a new problem will come out.

### Sites 13

IBM Research Ponder This

A monthly on-line competition hosted by researchers at IBM.

Ken Duisenberg's Puzzle of the Week

Problem archive and puzzle links.

Macalester College Problem of the Week

Weekly math problem and archive from Professor Stan Wagon for first-year college students presented by the Math Forum.

Math Forum: Algebra Problem of the Week

Past archive and solutions. Receive help from a mentor. Paid membership required to view problems.

Math Forum: Discrete Math Problems of the Week

Past problems and solutions, student recognition. Paid membership required to view problems.

Math Forum: Geometry Problem of the Week

Past archive and solutions. Receive help from mentor. Paid membership required to view problems.

Math Forum: Math Fundamentals Problem of the Week

A weekly interactive project for elementary school mathematics. Past problems, solutions, and student recognition. Paid membership required to view problems.

Math Forum: Problems of the Week

Projects from the Math Forum presenting weekly interactive math challenges to accumulate points for bronze, silver and gold prizes. Individual or class participation. Paid membership required to view problems.

Math Magic

Devoted to original mathematical recreations with puzzles and links.

Monthly Problem

Math problems and solutions from Math Central.

Problem of the Fortnight

Twice-monthly problems with archive and solutions.

Problem of the Month

Posted by the Mathematics Department of Bilkent University.

Purdue University Problem of the Week

Weekly math challenge with past problem archives and solutions.

Last update:

February 1, 2017 at 11:54:05 UTC
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