One of my points to the coach was that DS is already doing math in school so I have not been inclined to push more math time on top of that except for maybe immediately prior to a competition. I have to say that 4 hours per day of math sounds like an awful lot to me. At our public middle school (should be similar in high school as well), DS spends 4 hours per week in math class plus about 1 hour per week on math homework so 5 hours per week total.