"David tutored me in statistics while I was studying graduate level math at the University of Melbourne. I had very little math background to draw upon but he made it work so well and was able to provide me ways to apply the math using my own understanding of mathematics. He has an excellent capability for grasping how one's logical mind works, and then applying that to the language he uses in order to get someone to understand something. In the end I passed the subject with a high distinction. I highly recommend him for anyone requiring tutoring in any level math, he works well with all age groups and learning abilities."