Why is this so important

Because our brains like patterns. Love them even. Even if we dont want to admit it, we love consistency. And a weekly timetable will help lay out a study routine for your teen. If your teen is in the habit of not studying and not doing their homework on a regular basis theyre not likely to break the mould. Even if you start off lightly and build up the number of hours towards exam time , your teen will begin to think around their study timetable. If they know when they should be doing something, theres a much better chance that theyll actually do it