I have taught the AQA Mathematical Studies course with Papers 1 and 2A (stats), so my focus here is on these papers. However, there will be a lot of material that will still be useful to anyone studying a different board.
Make sure you check out Dave Gale's BLOG on all things Core Maths here:
If you are teaching Core Maths, then make sure you follow the #coremaths hashtag on Twitter to engage with a host of teachers swapping resources and ideas for this great course.