formal logic

How much formal logic should be taught in a critical thinking course?

charity

I still don't get how Siegel was not being charitable to the anonymous man.
explain?

What is teaching

According to the dictionary teaching is "the act or profession of a person who teaches." but this doesnt really tell us anything about what it is, after that long discussion in class im still not sure what it is but if I had to think of a working definition I think it is the act of imparting knowledge about subjects and inspiring habits that will allow people to gain knowledge on their own.

Critical thought

Don't most schools already stress critical thinking as a major part of curriculum?