I personally find that understanding a topic leads to far better retention than simply memorizing a structure. Therefore all students will progress according to their ability as I will not move on to another topic until I can make the student understand the current topic he is on. They will follow a textbook, first based on my advice then on their opinion and very little work will be given outside the lesson time if it can be helped. Based on my experience students tend to become concerned extremely close to their exams at which point my help will be perfectly suited to their needs as my focus is to reduce stress on said student. With my own experience of this time still fresh in my mind and with ample experience teaching for the past 2 years you'll find you are your child will get a tutor who not only knows how to teach them effectively, but understands them as well.