It was in a technical school in our city.
A couple is coming. A stream of 100 people sitting in the audience. Who knows - there are boards very large (practically up to the floor) and in order not to shrink, do not tilt to write down - the board is understood on two slopes on the sides...
This is the situation:
Prepod writes out the formulas of the entire board from the top to the bottom, and for some reason the poor man is exactly inclined almost to the steps to write down the formulas at the bottom (may not just know that the board has such a convenient property). A loud voice from the audience:
- Board rises (someone did not remain indifferent to the torture of the teacher and decided to tell him)
Prepod turned, looked at the audience and did nothing. After that, he wipes out the entire board (the task continues) and writes it out with formulas for the second time - and again slips almost to the floor and does not lift the board.
The board rises! (He shouted the same good voice already louder)
Prepod did not react to the message again. He wipes out the board again and again accepts to write the equations on it. Only this time when he reaches the place where he needs to lean, and writing is no longer convenient - he still takes the board and carefully POSTs it!! to
In the classroom, one cotton was first scattered... Then the second, then more and more people began to knock... In the end, the entire flow of 100 people applied the intelligence of the teacher! Prepod was very embarrassed.. but it was his minute of fame :))))