-> Excellent thinking - always used to set out stats questions in my    
-> papers so that process rather than 5 decimal place accuracy was    
-> tested;  right answers came out whole, anything else was faulty    
-> application of procedure - as students were warned.  And    
-> being able to recognise the first 10 lines of Pascal's triangle    
-> was always a great aid in sitting national exams...   
   
-> :-)   
    
True.   
    
But, in a sense I was teaching my students to cheat. I told them that,   
if they saw that the two shorter sides of a right-angled triangle were   
8 and 15 units, for example, they should just write down 17 for the   
hypotenuse, without doing the calculation.   
    
It works, and saves a lot of time. But maybe it isn't quite ethical!   
    
                           dow 
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