That and also - learning to separate influence from facts. It's shocking the way teachers push their own agendas in class settings now. It was bad when I was a kid, it's absolutely horrific now. Many (not all, of course) are not teaching, they are indoctrinating. To the point kids don't get to make choices about what they've read or learned. They aren't given space to make their own decisions about what those things mean. Even in areas that interpretation is a necessary skill and there are no right or wrong answers, they are being taught that there ARE right and wrong answers. The critical thinking is the most important part of schooling and that part has largely been deleted.Mark Twain said, "Education is what you must acquire without any interference from your schooling." By that, I think he meant that while facts and times-tables and such may be important, they mustn't distract from the fact that the true purpose of education is not simply to learn, but to learn how to learn. If it can't do that, it's fairly useless in most people's daily lives.