Maths Tutor vast experience in teaching , speciality, O' level Cambridge

With due veneration I dare to mention that I teach my subject (Mathematics) to Secondary, Higher Secondary & GCSE O'level Cambridge university Curriculum.
It's not the matter of teaching at any level, what adds to the profile of a teacher is how much effectively all it's done .
My humble intimation may not be taken as self praising to say that besides the excellent performance of my students in GCSE O'level results are always showing excellent results.
Teachers community is the only working sector in the world which is assessed by the performance of his/her associates. Remained in this career since long.