Inspired very much by reading Mr Barton’s How I Wish I’d Taught Maths and number of different conversations at the recent #mathsconf14, I’ve decided to start putting together a number of ‘minimally different’ exercises by applying the principles of variation theory. The rationale is that by ensuring that each question is related to the previous, pupils will be able to make connections which seem obvious to us (as experts), but which frequently elude the students I teach. It is worth pointing out that such exercises will be used when introducing a class to a new concept. This is very much going to be a work in progress – and I am by no means claiming that these exercises will be perfect, or even the only way of varying a question – but it seemed worth sharing in case they are useful to anyone else!

Feedback will always be very welcome.

Multiplying Negative Numbers – minimally different

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