Years ago, I lost my temper while arguing with my brother, and said, "Jeff, I could teach you everything I know and you'd still be an idiot." Please keep that in mind as you read this site.

Recent posts


Back in 1975, Fred Brooks wrote:
December 20, 2019

Measuring Software Tools

I think there are four interesting ways to measure a software tool. To make them seem more deserving of serious attention, I’m going to use mathematical nota...
December 17, 2019


I talk a lot about lesson design and delivery, but when instructors get a chance to ask me something one-to-one, what they often ask is, “How much should I c...
December 13, 2019

Synchronous Online Active Classes

I have run RStudio’s instructor training class three times in the last three weeks, which has prompted me to think again about the future of teaching and lea...
December 13, 2019


Thirty years on, most Canadians instantly recognize the name of their murderer. I’d rather remember theirs:
December 06, 2019