The point of science is to be evidence-based. Teaching science in a non-evidence-based way is a deeply ironic way to miss the point.
— Ian Horsewell.
The Nuffield film (see below) has also been published on the Guardian website, and the comments there are worth reading. Grit your teeth first, but do stay until you read Ian Horsewell’s masterpiece. Of course, the standard of comment on Guardian blog posts is one of those things people on Twitter get angry about. Ahem.