jonathan7 said:

I think the analogy is somewhat faulty though; we're not talking about school. Infact the established way of teaching in the Prequels is to have a Padawn and ergo one main teacher. Also you also make a distinction in your sentance when you say "Science Teacher" so you are in fact categorising him.

Yes, we are talking about school. Yoda is a teacher.

jonathan7 said more:

I think your point would've worked if we were just discussing the OT, but I just don't think your explanation holds water (no offence). I would have been more sympathetic to your point of view if it had been just the one mention, rather than the two. Additionally, Obi-Wan's statement seemed to indicate [that] he was close to Luke's age [at the time]. As such, I personally think it's a contradiction.

Fixed.

jonathan7 said even more:

(My apologies for being pedantic on language use; too much philosophy over the years ;-))

Irony.