Wednesday, May 09, 2007

Problem group

I held my first problem group for electrical engineers this morning. I apologised in advance for using i's instead of j's for the square root of -1, and for not knowing much about electrical engineering.

On the plus side I managed to explain why the sky is blue, discuss the family line of Lord Rayleigh , and lose the chalk and the answer sheet (this is my trademark move).

I think that not really understanding the subject you are teaching could be the way to go. I quote from Bertrand Russell.
Passive acceptance of the teacher's wisdom is easy to most boys and girls. It involves no effort of independent thought, and seems rational because the teacher knows more than his pupils; it is moreover the way to win the favour of the teacher unless he is a very exceptional man. Yet the habit of passive acceptance is a disastrous one in later life. It causes man to seek and to accept a leader, and to accept as a leader whoever is established in that position.

If you establish at the outset that you really don't know more than the pupils, then they start to think about what you are doing and whether it is correct or not, and are prepared to offer their own views. As long as you keep some kind of order to proceedings then everything is fine.

Odd bit of knowledge: Rather good physicist Paul Dirac studied electrical engineering.

Odd bit of english culture: Cheese Rolling.

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