Notable reforms
Some of the methods and reforms seem to work, and certain weaknesses can be identified.
First, anything that more precisely meets the needs of the child will work better. This is the great lesson from M. Montessori.
The teaching method must be teachable! This is a lesson from both Montessori and Dewey. The transcendentalists failed here.
It might be wise to base conservative programs on classical education, which reliably teaches valuable skills to the majority of Myers-Briggs temperaments, by teaching facts.
Programs that test individual learning, and teach to mastery of a subject have been proven by the state of Kentucky to be far more effective than group instruction with compromise schedules, or even class-size reduction.
Schools with limited resources can use a grammar-school-only approach, using students as teachers. If the culture supports it, perhaps the economic discipline of the Lancaster school can reduce costs even further. However, much of the success of Lancaster's "school economy" was that the children were natives of an intensely mercantile culture.
In order to be effective, classroom instruction needs to change subjects at times near a typical student's attention span, which can be as frequently as every two minutes for young children. This is one of the tricks that seems to help Marva Collins teach. The other is a genuine love of students-- which cannot be trained, and therefore must be selected-for.
The Myers-Briggs temperaments fall into four broad categories, each sufficiently different to justify completely different educational theories. It might be socially profitable to test and target these temperaments with special curricula.
Some of the Myers-Briggs temperaments are known to despise educational material that lacks theory. Therefore, effective curricula need to raise and answer "which" and "why" questions, to teach students with "intuitive" (Myers-Briggs) modalities.
Philosophers identify independent, logical reasoning as a precondition to most western science, engineering, economic and political theory. Therefore, every educational program that desires to improve students' outcomes in political, health and economic behavior should include a Socratically-taught set of classes to teach logic and critical thinking.
Another valuable reform is to permit students to test out of classes. This saves resources, increases motivation, directs individual study, and reduces boredom and disciplinary problems.
To support inexpensive continuing adult education a community needs a free public library. It can start modestly as shelves in an attended shop or government building, with donated books. Attendants are essential to protect the books from vandalism. Adult education repays itself many times over by providing direct opportunity to adults. Free libraries are also powerful resources for schools and businesses.
New programs based on modern learning theories should be quantitatively investigated for effectiveness. A notable reform of the education system of Massachusetts occured in 1997.
See also educational philosophies.