Colin Foster's Mathematics Education Blog

Do you have tasks that you use in lessons that "can't fail"? Favourite tasks that you've used many times and that always s...

Einstein is supposed to have said that “Everything should be made as simple as possible, but no simpler”. Mathematics questions often say ...

How do you introduce a new mathematical topic or concept? Do you give students a task to do, or do you start by explaining everything? I thi...

I have been very inspired by Leslie Dietiker's way of thinking about mathematics lessons as 'stories' (see Dietiker, 2015). In t...

It's the holiday, so a shorter, lighter blogpost today, and only one reflection question. I hope you are having a good break! When I wen...

Are there any 'boring' topics in mathematics? Understandably, mathematics teachers tend to be kind of professionally committed to th...

I am always on the lookout for 'real-life' mathematics that is of potential relevance and interest to students but where the mathema...

Does anyone teach lines of best fit 'properly' in lower secondary school? I think whenever I’ve seen this concept taught, or taught ...

Optical illusions are almost universally intriguing. Young children can completely get them, but they can fascinate adults too. There is som...