Yeah well I come from a school in a very small town where there is a shortage of teachers and there is only 35 kids in year 12 including myself. I have the same teacher for chemistry, biology and food tech. Thats 3 out of 5 subjects. Shes often sick or at meetings out of town so we are always without a teacher. we've all learnt that we pretty much have to teach ourselves off the syllabus.. its inconvenient but not that hard. And seeing as we are in year 12, we should know by now what to do in class. After all, you won't be likely to get a great deal of help next year at uni.