Sorry to not be specific. This article is about the US, as is my comment. I also was talking about 200 students per teacher, not per class, which comes about

Sorry to not be specific. This article is about the US, as is my comment. I also was talking about 200 students per teacher, not per class, which comes about because middle and high school teachers generally teach 5-7 classes, of 20-35 (although sometime) students.