People remember only what is interesting and useful to them, what helps them make sense of the world, or helps them get along in it. All else they quickly forget, if they ever learn it at all. The idea of a "body of knowledge," to be picked up in school and used for the rest of one' s life, is nonsense in a world as complicated and rapidly changing as ours. Anyway, the most important questions and problems of our time are not in the curriculum, not even in the universities, let alone the schools.
Almost every child, on the first day he sets foot in a school building, is smarter, more curious, less afraid of what he doesn't know, better at finding and figuring things out, and more confident, resourceful, persistent and independent than he will ever be again in his schooling - or, unless he is very unusual and very lucky, for the rest of his life. Already, by paying close attention to and interacting with the world and people around him, and without any school-type formal instruction, he has done a task far more difficult, complicated and abstract than anything he will be asked to do in school, or than any of his teachers has done for years. He has solved the mystery of language. He has discovered it - babies don't even know that language exists - and he has found out how it works and learned to use it. He has done it by exploring, by experimenting, by developing his own model of the grammar of language, by trying it out and seeing whether it works, by gradually changing it and refining it until it does work. And while he has been doing this, he has been learning other things as well, including many of the "concepts" that the schools think only they can teach him, and many that are more complicated than the ones they do try to teach him.
Explanation:
We need to get kids out of the school buildings, and give them a chance to learn about the world at first hand. It is a very recent idea, and a crazy one, that the way to teach our young people about the world they live in is to take them out of it and shut them up in brick boxes. Aside from their parents, most children never have any close contact with any adults except people whose sole business is children. No wonder they have no idea what adult life or work is like. A child learning to talk does not learn by being corrected all the time - if corrected too much, he will stop talking. He compares, a thousand times a day, the difference between language as he uses it and as those around him use it. Bit by bit, he makes the necessary changes to make his language like other people's. In the same way, kids learning to do all the other things they learn without adult teachers - to walk, run, climb, whistle, ride a bike, skate, play games, jump rope - compare their own performance with what more skilled people do, and slowly make the needed changes. But in school we never give a child a chance to detect his mistakes, let alone correct them. We do it all for him. We act as if we thought he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Soon he becomes dependent on the expert. We should let him do it himself. Let him figure out what this word says, what is the answer to that problem, whether this is a good way of saying or doing this or that. Our job should be to help him when he tells us that he can't find a way to get the right answer. Let's get rid of all this nonsense of grades, exams, marks. We don't know now, and we never will know, how to measure what another person knows or understands. We certainly can't find out by asking him questions. All we find out is what he doesn't know which is what most tests are for, anyway. Throw it all out, and let the child learn what every educated person must someday learn, how to measure his own understanding, how to know what he knows or does not know.
Children want, more than they want anything else, and even after years of miseducation, to make sense of the world, themselves, and other human beings. Let them get at this job, with our help if they ask for it, in the way that makes most sense to them.