Hey mate, The Human Movement/Teaching course here @ CSU is a good choice... I do Psych/Teaching(PDHPE) and do all the same subjects as you guys and in all honesty, it is better to have general maths under your belt rather than 2 unit or 3 unit because the only maths involved in your course (as far as i know) is the maths that is taught in the general maths syllabus (the 2 unit and 3 unit Mathematics HSC subjects are very dissimilar to that of general maths). The meaning of 'assumed knowledge' is exactly that - 'assumed', so it's not a compulsory prerequisite of the course. For the record, I got accepted into Human Movement/Teaching and only did General Maths @ school so you've got nothing to worry about.. Best of luck