Just about all schools, I guess, nowadays have challenging students. But in Maths, because almost all schools 'set' in Maths and not other subjects, we very often have 'lower' and 'bottom' sets of students - which closely correlate with the most challenging classes. I realise that by posting here I'm asking a highly biased sample of teachers (Maths teachers), but doesn't this inevitably mean that Maths teachers are routinely expected to teach more challenging whole classes than most other subjects? I know that some students dislike P.E. with as much, or more, venom as they may dislike Maths, but P.E. classes do not routinely contain the same concentration of such students as occurs in some 'lower set' Maths classes. And of course, there's nothing like the pressure in P.E., or MFL etc. for these students to attain their target GCSE grades. I don't feel that this phenomena (the routine existence of challenging whole classes in Maths, specifically) is adequately recognised, discussed and addressed by either SLTs or Unions (the latter especially because they like to think all teachers have the same jobs and working conditions, and that Maths teachers are no different).