The philosophy of the school room in one generation will be the philosophy of government in the next.In the United States people have been disagreeing for over 150 years what public schools should be, what they should teach, and how they should teach it. These controversies have persisted in the face of concerted effort by intelligent people to address them. People disagree as to what public schools should be because they have different expectations of them.
-- Abraham Lincoln
These expectations can be understood in terms of people's having three different images of the school, the Temple, the Factory and the Town Meeting. Conflicting images generate conflicting expectations. They imply different costs and benefits. These conflicting expectations maintain school controversies.
For more on this and a link to a survey with which you can evaluate your own expectations, see School Image: Expectations & Controversies.