I tend to favor a class size of 12-18. It's large enough for a great diversity of views and backgrounds to manifest without yet becoming too much for the teacher to adequately handle. It also keeps the teacher from becoming too friendly with the students, which is important because teachers have a disciplinary roll and stuff.
@MrsKatherineArch Individual teaching is critical. But at eight students is there enough energy to learn from other kids thoughts and questions. I think students learn and relate with each other sometimes easier than from the teachers instructions.
There are some different theories. Personally I think younger children benefit from a smaller ratio 15:1 and older children benefit from a slightly larger one, maybe 20:1.
If you want to stimulate good discussions then it's better to have a wider social group as possible.
@TheConstantGardener I also think that it's important to what each teacher like. I don't see why class rooms have to be equally broken up. If a teacher is better a teaching bigger groups than I don't see why they can't have a bigger class room or vice versa for the teacher that likes teaching a smaller class.
@Lostpoet In further education, class sizes are often very large and that's ok for lectures. Age has a lot to do with it and also the subject. It's difficult to generalise. The problem with varying class sizes is that it can difficult for the school management to get teacher recruitment to fit personal likes of the teachers. There has to be some kind of standard.
If I were a superintendent 🤣, the ratio would be 2 teachers to 12 students. I am an educator though,at the whims of the taxpayers, so I play the hand I’ve been dealt .