I have always enjoyed helping my classmates, my little sister with their classes or homework. For school support I advocate regular monitoring (min 3 times a week). I start by reviewing / re explained the courses that were done in the day and / or the day before and then I go to the exercises to do. I'm still trying to get homework done for Monday for the week end not being polluted by this annoyance (although it will sometimes be necessary to review some lessons if necessary). I am obviously attentive to the needs of the child and his difficulties. For math classes I consider that 2 hours a week in one session are sufficient. In two hours we have time to review what the student did not understand, redo exercises, review achievements ... I also always give 2 or 3 small exercises focused on the difficulties to make a week on the other. These are short and 10 minutes are enough to do them.