almost every govt secondary school teacher offers extra classes at NO charge to the students in preparation for exams. the problem is parents are not on board and teachers CANNOT force students to stay after school. to assist with this govt school teachers give up their lunch time to assist students but once again, teachers CANNOT force students to give up their lunch period even though students are encouraged to bring their lunch along. the real problem is teachers has NO assistance from the govt!!! it is sad to say but the govt is NOT serious about education!! and i agree with everything you said