Apologies if this question has been asked before, or if the answer is somewhere obvious, however in either case, I have missed it. I am using the SAM materials from Edexcel (paper 1MA0/1F and 1MA0/2F) provided on their website as part of a 173 page (or thereabouts) document. In order for them to be of use to me and my students, I need some ideas on grade boundaries. I know that there won't be any official ones, as they'd only be drawn up on the basis of results (or is that just an assumption?), but if anyone has any informed input, please share... This is driving me witless - I've spent far too long trawling the net to no avail and I need to do some gardening! Please help!