During the course we have three problem-solving sessions, where I teach some problem-solving techniques that seem to make progress against mathematical problems. Since the problems I present are open-ended, I don't publish solutions (although I'm always happy to discuss yours). However, if you want to see what progress others have made on the problems, or to record your own problem-solving episodes, you are encouraged to visit my problem-solving page, using the userid sleuth and the password eureka
| Problem | Date |
| Paper folding | January 23rd, 2009 |
| Penny piles | February 27th, 2009 |
| Diagonal counting | March 27th, 2009 |