[skrishnamurthi]

I completely agree. In fact, this sort of two-track approach is what universities like Brown, WPI, etc. now do. Using the same ("weird") language at both levels works fine so long as you separate the crowd. Otherwise, as you very astutely point out, the two groups are asking completely different questions and answering them clearly and consistently is absurdly hard. Too bad MIT didn't think of this (or, presumably, did and rejected it for whatever good reason, that somehow doesn't seem to be applying to other places like Brown).