I disagree. How can you plan and resource 22 engaging lessons that ensure students make progress and are supported in 3 hours? Then there’s marking books and running clubs which in my subject are important for the students. It takes me 45 mins to mark 30 books and I have 500 to do each assessment point at least. Then there’s mandatory training like child protection etc. I can’t see how 10% would be enough to give students the bare minimum.