The error of your position is in assuming that every person can without help access all relevant knowledge, process it and make use of it. Teaching is more about helping students acquire the skills needed by which to continue learning and increasing in knowledge throughout life. Your argument is based on the false axiom, "Those who can, do and those who can't, teach." Those who teach must not only be able to do but also help others to do as well. A better axiom is "You only really know what you know you can teach." Teaching is both a science and an art. The science is in learning what statistically works for the largest number of people in the least amount of time and the art is in knowing how to plan, present, assign, evaluate and extend all that science brings to the table.
The irony of education is that everyone knows that university professors are among the nation's worst teachers and yet they are teachers of our public school teachers. University professors do not have to be great teachers to effect great learning because universities are far from complusive and their successful students are all highly motivated self-learners. K-12 teachers, on the other hand, must be able to sell the whole concept of learning even and especially to the most reluctant learners as per their mandate from the public. Yet professors get great praise for all the work their students do and public school teachers get great criticism for all the work they do in behalf of their students. A century ago, public school teachers were trained far less by university professors and far more by master teachers. Teachers in most other industrialized nations are federal employees who answer directly to the state for their actions and not to a myriad of local entities with a host of differing and often conflicting expectations.
Furthermore, teachers are the least well-protected professionals under current labor law. Teachers can lose their credentials for a whole host of reasons that would not result in criminal prosecution, including merely changing jobs in the middle of the term. A teacher who is dissatisfied with his or her terms of employment is bound as tightly as any indentured servant of the American colonial period by the teacher's annual contract. Teachers in states that do all some job portability still require teachers to give 30 days notice of severence but do not have to give teachers the same amount of notice. School boards may at any time revoke tenure, provided they have a substantive case against the competence of a teacher. The real reason that schools rarely fire "bad" teachers that many administrators let tenure take the blame for their own reluctance to do their jobs as evaluators of teacher performance. If you tell a teacher that he or she is doing a poor job, then you need to be able to tell the teacher HOW to remediate their performance to your satisfaction. Good principals constantly teach their teachers how to be better teachers and rarely have to resort to such tactics because they create an environment of learning in their schools. Less effective principals are constantly "weeding out" their staffs. The worst principals just throw up their hands and claim to be held captive by tenure.
Also today's public school teacher has to make up for increasingly incompetent parents who think nothing of sending children to kindergarten who are not even properly potty-trained, much less school ready. Part of my personal preparation for kindergarten in 1960 was to learn to tie my own shoes. Today, elementary school teachers more often than not teach children to tie their shoes rather than the parents of those children. So as expectations on what teachers should be able to teach go up, expectations of preparing students for school go down.
Furthermore all of the critics of education live in denial of the fact that different children have different capacities for learning as well as differing learning styles. They often compare teaching to manufacturing where the manufacturer has total control over the quality of materials accepted for processing. Their analogies fail immediately because teachers have no control over the make up of their classes, except in high school classes with prerequisites. Even then, exceptions are often made for non-academic reasons over which the teacher has no control, making any comparison between schools and factories absolutely ridiculous at best and just plain dishonest at worst. Today's teacher is expected to approach every topic from a variety of teaching styles, so as to facilitate as many differing learning styles as possible. So, as topic learning become more intensely precise, teaching methods are expected to become more diverse, putting all the more pressure on teachers and no one else.
The "waste" of public education is actually in having teachers teach children those things which the children's own parents should have taught them in preparation for attending school. The trend in education is for everyone to increase expectations of teachers and of schools while lowering expectations of students, parents and the community. And yet a surprising number of young adults still feel the calling to become the next generation of under-appreciated, misunderstood and even persecuted teachers.
QUOTE(Frozny @ Mar 30 2005, 05:43 PM)
Many proponents of public education claim that society is investing in knowledge. Even if we presuppose that the public schools teach only knowledge, this is still economically unsound reasoning. The input for public education is a scarce resource - tax money. The output of public education is knowledge, which is a nonscarce resource.
Material resources cannot be duplicated indefinitely as knowledge can. Freedom of communication (speech, press, etc.) ensures the rapid spread of knowledge at a far lesser cost of scarce resources to society.
The question is:
What justifies the investment of scarce resources in the nonscarce resource of knowledge?