Colin Foster's Mathematics Education Blog

This is my final blogpost, as my year as President of the Mathematical Association draws to a close, so I've allowed myself to go on at ...

Teachers of mathematics seem not to be particularly fond of crocodiles/alligators when they are used to give meaning to the inequality signs...

If mathematics is about being certain and precise, then how can probability be part of mathematics, because probability is about not being ...

Sometimes, the units (e.g., cm) that come with a quantity can really help to make sense of what's going on. But do we always need units?...

How can video clips be used effectively in the teaching of mathematics? And I don't mean clips of someone explaining something... If I d...

Zero is a strange number - learners sometimes even doubt if it is a number...  In my articles in Mathematics in School , I often address ...

If 'proportional' or 'multiplicative' thinking/reasoning is the central idea in age 11-14 mathematics, then how might we do...

Not all commonly-used representations of number are necessarily equally helpful. We shouldn't just assume that anything 'visual'...

How accurately do things need to be  drawn  to evidence conceptual understanding? When are accurate drawings helpful and when are they unnec...