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Sobering Thought of the Day

A friend from JC recently remarked to me about my teaching profession:

"How do you empathise with them (your students), considering that you don't know the feeling of not understanding what is being taught?"

Ouch.

Pun of the Day

Jackhammer operators are always breaking new ground.

English is a funny language...

Why is "a part" separate while "apart" together?

Update

Not that nothing's happening in my life, just that I'd rather not blog about work.

However, here's an entertaining joke:

***

WIFE : You tell a man something, it goes in one ear and comes out of the other.

HUSBAND : You tell a woman something: It goes in both ears and comes out of the mouth.

THE PHYSICISTS' BILL OF RIGHTS

(Author Unknown) We hold these postulates to be intuitively obvious, that all physicists are born equal, to a first approximation, and are endowed by their creator with certain discrete privileges, among them a mean rest life, n degrees of freedom, and the following rights which are invariant under all linear transformations:

1. To approximate all problems to ideal cases.

2. To use order of magnitude calculations whenever deemed necessary (i.e. whenever one can get away with it).

3. To use the rigorous method of "squinting" for solving problems more complex than the addition of positive real integers.

4. To dismiss all functions which diverge as "nasty" and "unphysical."

5. To invoke the uncertainty principle when confronted by confused mathematicians, chemists, engineers, psychologists, dramatists, and other lower scientists.

6. When pressed by non-physicists for an explanation of (4) to mumble in a sneering tone of voice something about physically naive mathematicians.

7. To equate two sides of an equation which are dimensionally inconsistent, with a suitable comment to the effect of, "Well, we are interested in the order of magnitude anyway."

8. To the extensive use of "bastard notations" where conventional mathematics will not work.

9. To invent fictitious forces to delude the general public.

10. To justify shaky reasoning on the basis that it gives the right answer.

11. To cleverly choose convenient initial conditions, using the principle of general triviality.

12. To use plausible arguments in place of proofs, and thenceforth refer to these arguments as proofs.

13. To take on faith any principle which seems right but cannot be proved.

What your Maths Teacher really means when he says:

CLEARLY: I don't want to write down all the "in- between" steps.

TRIVIAL: If I have to show you how to do this, you're in the wrong class.

OBVIOUSLY: I hope you weren't sleeping when we discussed this earlier, because I refuse to repeat it.

RECALL: I shouldn't have to tell you this, but for those of you who erase your memory tapes after every test...

WLOG (Without Loss Of Generality): I'm not about to do all the possible cases, so I'll do one and let you figure out the rest.

IT CAN EASILY BE SHOWN: Even you, in your finite wisdom, should be able to prove this without me holding your hand.

CHECK or CHECK FOR YOURSELF: This is the boring part of the proof, so you can do it on your own time.

SKETCH OF A PROOF: I couldn't verify all the details, so I'll break it down into the parts I couldn't prove.

HINT: The hardest of several possible ways to do a proof.

BRUTE FORCE (AND IGNORANCE): Four special cases, three counting arguments, two long inductions, "and a partridge in a pair tree."

SOFT PROOF: One third less filling (of the page) than your regular proof, but it requires two extra years of course work just to understand the terms.

ELEGANT PROOF: Requires no previous knowledge of the subject matter and is less than ten lines long.

SIMILARLY: At least one line of the proof of this case is the same as before.

CANONICAL FORM: 4 out of 5 mathematicians surveyed recommended this as the final form for their students who choose to finish.

TFAE (The Following Are Equivalent): If I say this it means that, and if I say that it means the other thing, and if I say the other thing...

BY A PREVIOUS THEOREM: I don't remember how it goes (come to think of it I'm not really sure we did this at all), but if I stated it right (or at all), then the rest of this follows.

TWO LINE PROOF: I'll leave out everything but the conclusion, you can't question 'em if you can't see 'em.

BRIEFLY: I'm running out of time, so I'll just write and talk faster.

LET'S TALK THROUGH IT: I don't want to write it on the board lest I make a mistake.

PROCEED FORMALLY: Manipulate symbols by the rules without any hint of their true meaning (popular in pure math courses).

QUANTIFY: I can't find anything wrong with your proof except that it won't work if x is a moon of Jupiter (Popular in applied math courses).

PROOF OMITTED: Trust me, It's true.


Source: Internet