Mr Teo was an effective and responsible MOE Math lecturer and tutor, and hence was promoted to the post of a HOD Math and eventually a Vice-Principal in a top JC. His passion lies in the classroom where he felt most accomplished when he is able to help students excel and like the subject.  His teaching experience includes Raffles Junior College & Pioneer Junior College. He was also an ex-MOE CPDD officer during which he was involved in a series of syllabus revision for JC Mathematics, and is hence very familiar with the latest syllabus requirements for the subject.