My DD12 shadowed at our local high school (class size 19, total school 1200). She said the kids were friendly enough but seemed dis-engaged in the classroom. No one showed any enthusiasm for what the teacher was explaining.
We are considering a private schoolif funds permit, where class size will be limited to 12, and teaching (at least the humanities) occurs around a table, where the students are face to face with each other, instead of sitting in rows and columns, kicking the backs of chairs.
I wish I could say her interest in academics will rise above the lethargy of the public school classrooms, but I can't be sure.