Organisation for those involved in mathematics teacher training.
If you are interested in how research informs practice in maths classrooms, the British Society for Research in the Learning of Mathematics website might be the place for you.
Based you-know-where, Cambridge Maths produce (amongst other things) succinct summaries of current research around aspects of the teaching and learning of mathematics.
The Joint Mathematical Council’s stated aim is the advancement of mathematics education, and brings together all of the key subject associations.
It’s worth using this site to find your local maths hub.
Fully-inclusive organisation for adults who enjoy meeting in a bar once a month to do maths puzzles etc. Meets in many towns and cities around the world.
An exciting initiative which plans eventually to build a permanent Mathematics Discovery Centre in England. It will host events and do outreach – great idea.
The National Association for Numeracy and Mathematics in Colleges (NANAMIC) provides professional development for numeracy and mathematics teachers and is a voice for the post-16 learning and skills sector.