Teacher quality versus class size

It’s easy to sell a smaller class size policy. On the surface it seems a no-brainer. First points to Labour (and the teacher unions).

But would pupils and their parents choose (smaller) class size over the quality of teacher?

I know from my own experience as a pupil, and as a parent of pupils, that in hoping for or pushing for a particular class the teacher was always the primary consideration.

Would I choose a poor teacher with a class of 20 or a great teacher with a class of 25? 30?

If parents and pupils could choose their class then crap teachers would have tiny classes and the best teachers would have the biggest classes.

Teacher quality versus class size will be an interesting debate through this election campaign.