[plt-scheme] The perfect teaching language--Is this too much to ask for?

On Jun 13, 2009, at 7:36 PM, Matthias Felleisen wrote:

> 5. I don't understand how your students can have test cases for  
> each function and NOT see that their functions are producing the  
> wrong things. Code excerpts would be helpful.

Two ways:
5a) The contract is wrong.
5b) The test cases (and the program) don't follow the contract.
My students routinely make both of those mistakes.


Stephen Bloch
sbloch at adelphi.edu