Kids are in school for 5 or so hours per day, but for many kids (especially those who are bright), they are learning for perhaps 1 hour of that time. If you can

Kids are in school for 5 or so hours per day, but for many kids (especially those who are bright), they are learning for perhaps 1 hour of that time. If you can take an hour to teach them something, and another 10 minutes to assess their progress later in the day, they will learn at least as much as they would have in school. Of course, the time commitment also varies by grade; younger kids need lots of attention, whereas older kids are more self-sufficient. It depends on lot based on your particular kids.