Introduction: I used to teach calculus, economics and statistics at the college level. For the past 3 years, I have helped a lot of students get higher grades in these and other math subjects, and I have also helped many others pass standardized tests like the SAT, GRE, GMAT and ASVAB.
My lessons typically consist of a review of the principles that the student needs to know and a lot of practice with problems, starting with easy ones before tackling the more challenging.