I have been a supply teacher for several years. I have been to a few schools where higher level teaching assistants are used to cover classes. One was moaning... saying that we don't get paid enough to cover a class. Well, in my opinion they shouldn't be paid the same rate as a supply teacher bcos they didn't have to do a teaching degree and go through the stress of studying. It's not fair that schools are doing this and supply teachers are not getting enough work.