Our principal tutor for Chemistry, Mr Donnell Koh, was a former Raffles Institution (JC) and Meridian Junior College teacher with a wealth of experience teaching the A level syllabus and a superb track record of getting students to excel for the A-level Chemistry exam (90% As and Bs). 

Twig Learning Center started off specialising in A-level Chemistry. Over the years, the centre has seen many students graduating at the top of their A-levels cohort. Because of the many requests, we have started O Level and IP Chemistry tuition on top of A Level H2 Chemistry tuition classes. Many Chemistry tutors have come to hear about Twig Learning Center and applied to work for us. The Chemistry tutors with us have been carefully selected from a vigorous process. Their lessons are video recorded and analysed hence from this process we only select the best. Not only are our Chemistry tutors highly experienced, more importantly they are able to enable students to understand Chemistry with ease and invoke an interest in the subject.