Email is an efficient way to communicate information like scheduling, but not a good way to settle disputes. It is too easy to write angry words and send them off without careful thought. There is also no guarantee the recipient will read, must less respond to, an email. Telephone calls are preferable, but not as much as actually talking in person. If you wish to discuss an important subject with someone within a school, the best thing is to schedule a meeting and talk face to face.
Too often, teachers and administrators may feel themselves to be at loggerheads, which does not benefit the school at all. They have different jobs and sometimes different priorities, and teachers may easily become resentful of decisions made by the administration if they don't understand the reasons behind them. Administrators, on the other hand, may feel underappreciated and overwhelmed by competing demands. Both must strive to listen to the others' perspective while explaining their own clearly.
Parents have a right to input in how their children are educated and treated while at school; on the other hand, they are not in charge of the classroom. Teachers need parental support to make sure students do their assignments and show up at class, on time and ready to learn. A free flow of information between parents and the teachers and administrators establishes the trust and understanding necessary to work together for the good of the student.
Children, particularly adolescents, resist authority, especially that which they feel does not respect them. Minor behavior issues can turn into major confrontations if not handled tactfully by the teacher. Good teachers both clearly define their expectations and listen to their students' explanations before taking disciplinary measures. Students, for their part, should explain their complaints before acting out in defiance. Communication is perhaps never more of a challenge than between these two groups, but its rewards are a peaceful classroom and a good education.