Logic is something I want to focus on this year. My plan is to have 'regular math' four days a week and on the fifth day have some sort of hands on math as well as logic problems. Here are some of our resources:
For me, education is more about teaching 'how' to think. If you can teach children to think logically and critically...they will spend the rest of their lives educating themselves.
How about you? Do you teach logic/critical thinking skills? What resources do you use?