Tell me and I'll forget, show me and I may not remember, involve me, and I'll understand.
I'm always surprise to read that kind of sentence. What proof does one have that one will understand when involved and not (or less) than when told?
This affirmation should be supported by proofs or, in my humble opinion, removed. As far as I know there are no proof at all that learning results are better using one of the above mentionned method than another. Reading this affirmation, some might conclude that this group lack of scientific approach. This is just my opinion. What do you think about it?