Monthly Archives: January 2012

A Number Riddle

My nephew Matthew sent me a number riddle (thanks, Matt!), which I pass on here: 1 is 3, 3 is 5, 5 is 4, and 4 is cosmic. Why is 4 cosmic? What happens to the other numbers? As is … Continue reading

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How Much Mathematics Should A Student Memorize? Part 6, Derivatives Of Exponential And Logarithmic Functions

In teaching calculus many, many times over the years, I strove to present to my students my approach to learning and mastering the subject. Part of this approach can be summarized by the slogan memorize the minimum As a teacher, … Continue reading

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Failing … To Learn

Dr. Brian Goldman is an emergency-room medical doctor and host of the excellent CBC radio program White Coat, Black Art. As I was tidying up some computer files I came across some notes from one of his CBC radio appearances … Continue reading

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