Luyện nghe bài hát The Professor's Song

To "if you give me attention."
If you give me your attention, I tell you what I am.
I'm a brilliant math'matician - also of a ham.
I tried for numerous degrees, in fact I've one of each;
Of course that me eminently qualified to teach.
I understand the subject matter thoroughly, true,
And I can't see why it all as obvious to you.
Each is a masterpiece, meticulously planned,
Yet everybody me that I'm hard to understand,
And I can't why.

My are models of true art, you must agree,
And my handwriting is for it's legibility.
a word like "minimum" (to choose a random word),
This was performed at a blackboard, and the wrote:

For anyone to say he read that, is absurd.
The anecdotes I tell get more every year,
Though frankly, they go to prove is sometimes less than clear,
And all my are quite lucid, I am sure,
Yet everybody me that my lectures are obscure,
And I can't why.

Consider, for example, the force of gravity:
It's inversely to something - let me see -
It's r^3 - no, r^2 - no, it's r, I'll bet -
The sign in front is - or is it minus, I forget -
Well, anyway, is a force, of that there is no doubt.
All these formulas are if you only think them out.
Yet students tell me, "i memorized the whole year through
Ev'rything you've told us, but the I can't do."
And I think why!