I am unaware of any country that makes a significant effort to tailor instruction to very high ability students in any systematic way. This certainly doesn&#x27;t occur during primary school age anywhere in the Anglosphere.<p>I&#x27;m also not bullish on the positive effects of primary school on cognitive skills full stop. Unschooled children are only a year behind their counterparts in public schools on average. That&#x27;s a really small effect for the difference between more than five hours a day of purposeful instruction versus none whatsoever. The same study does show children in structured homeschool doing one to five grade levels better depending on what&#x27;s tested so there almost certainly are students who benefit from earlier more advanced reading instruction but the implications for mass schooling are unclear. If we can&#x27;t even have children in different classes by ability level instead of age group I don&#x27;t hold out much hope for sane educational policy.<p>The Impact of Schooling on Academic Achievement:
Evidence From Homeschooled and Traditionally Schooled Students