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# Blog

## The man who thinks backwards

## The Intellectual Mathematics textbook model

## The case for WeBWorK

## Sexagesimal calculations in Mathematica

## Replies to critics: Charlotte Wahl

## Replies to critics: David Milliern

## What is “rigour” anyway?

## Down with the chauvinistic emphasis on “rigour” in calculus

## Why “the role of technology in teaching” is a misconceived question

## Irrationality of the claim that “lecture doesn’t work”