Well begun is half done. Our experience is that a lot of students really benefit by refreshing certain topics that have been treated in high school. It is not worth all time and money to spend a lot of our lessons hereon. Via our partner Wiskundepaigna.nl, it is possible to master these topics completely on your own. Your Personal Tutor will be very willing to advise you about the best way to use all these videos, summaries etc..