Monday, September 18, 2006

Calculus Disaster

The calculus exam was not fun to grade.

Ouch, ouch, ouch, ouch, ouch.

All the usual rules of imaginary integration were in play: naive power rule, ad hoc quotient rule, exponential invariance rule, natural log reciprocal rule. Why would we have rules of integration if you just got to make up your own? This is really where the weak algebra backgrounds trip them up: they don't realize that there are precise rules for working with mathematical expressions.

As a bonus question, I asked them how old they think I am. One guessed correctly; no one over-estimated. Most guessed in the range of 27-29.

Class average was a D. Not sure if I'm going to change the grades or if I'm going to let this be their problem.