School is a social experience as well. Children get along best with children of their own age, and sticking precocious six-year-olds and dumb-as-dishwater thirt

School is a social experience as well. Children get along best with children of their own age, and sticking precocious six-year-olds and dumb-as-dishwater thirteen-year-olds in the same classroom is just asking for trouble. We should arrange by age and then by ability. Split each year into three streams: 10% "smart", 70% "normal" and 20% "dumb". The smart kids get whatever they need. The normal kids get a good solid education. The dumb kids get ponderously taught the basics of life, to make sure they can read, do basic mathematics, and avoid vastly stupid life decisions.