In my experience of being a Head of Faculty in a very large secondary school, I was responsible for up to 14 TAs. Without them, not only would the students have suffered, I would have found my job much harder, if not impossible at times. It is not only in classroom activities where TAs. support students, but also in extra curricular activities, sports, and often providing inclusion support for disabled students.
Schools do need to recognise the need for training and professional development for TAs. Appropriate training supports not only the individual, but the students and school as a whole. But, of course this all cost money!
I would like to think the petition would result in a U turn, but I worry that education is in for a rougher time in the future. It is an easy target! After all if you're not satisfied you can "pay for it"!! NOT my opinion. X