Answer:
He means, By "Tell me and I forget", So he meant by that if someone told you something random, you might forget it. But then the other phrase said, "Teach me and I may remember", he means by that if someone teaches you, and just doesn't tell you it and goes off, You may remember it. The Other Phrase says, "Involve me and I learn" he meant by that, if someone involves you into something, your gonna learn it.
Explanation:
give me 5 stars ;)