BSRLM

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.

MathsJam

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.

MEI

MEI is a charity committed to improving mathematics education and promotes teaching and learning through different strands of activity. They have both free and paid resources (the latter via a subscription service).

NANAMIC

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.