> 18-25 kids in a class means you can only give each kid maybe two minutes of individual attention an hour, and maybe less. Anecdata: in my quite successful fr

> 18-25 kids in a class means you can only give each kid maybe two minutes of individual attention an hour, and maybe less. Anecdata: in my quite successful french public middle and high schools, I've never been in a class with fewer than 27 pupils. I would say success had more to do with geographic selection and other external criteria than from the internal educational benefits.