There is a strong correlation between parental involvement and academic success. To ensure your student's success, I suggest you do the following:
It is usually best if math homework is done before the other academic assignments. This is because the other academic subjects usually require more reading, and therefore, much of the work can be done in a reclining position. Students need to do math before they are physically fatigued so that they can sit upright and do the problems at a table.
Math homework is assigned on a daily basis (yes, usually Friday too) and is due the next day unless specified otherwise.
If your student has less than two hours of homework in any given evening, the rest of the time should be spent reading. Remember, it is crucial that your student study every evening. Studies show that hard work is more important than innate ability in predicting academic success. This concept cannot be emphasized enough. If your student is underperforming in math currently, this weakness can be overcome through persistence, determination, and hard work! (See www.AVIDonline.org)