Top Level O/L chemistry teacher for Cambridge and University of London courses

I have Master's Degree in Chemistry and B.Sc. Honors Chemistry Degree from Government College University, Lahore, Pakistan which is the best teaching institution in that country. I have experience of teaching chemistry for more than thirty years to students preparing for O/L examinations conducted by Cambridge and London universities. My students always got very good grades in their examinations. More than 50% of students in my classes got A* and A grade in their examinations. I taught in Nigeria as well as in Islamabad in Pakistan which gave me chance to teach students from different cultures and backgrounds.