Henning Makholm <[EMAIL PROTECTED]> writes: > Just a random thought: There used to be an informal rule saying, > "never write a false statement on the blackboard". Some student is > bound to mindlessly copy it down and take it for truth.
This is an excellent reason to write false statements on blackboards, making it clear in the context that it's false. In this way, the idiot students are more effectively weeded out, and the mediocre ones quickly learn to pay better attention. Thomas
