I have one year experience teaching Math for 2 Poly students, one of them has improved from C to A, meanwhile the another one has improved from D to B. I am also one of the mentor of my school's math club,mentoring Engineering Maths (A-maths, C-maths, F-maths).
I have half year experience in teaching Sec 2 Maths(NA, Express), both of them have improved from fail to pass.