Basic needs of teachings for a kid are (besides speech) writing, reading and a knowhow of how to maintain themselfs as an adult. Some indepth in how their culture works and to find their interest and develop in that. Instead the school system brings so much variety on things you need to remember like names of places and persons you forget the day you had your exam. And then they wonder why so many people still don't know what to do after their highschool ;)