Mr Koh is a patient and caring teacher. He always does his best to simplify and help his students understand difficult concepts, and frequently answers questions outside of class time (after class or over WhatsApp). His passion for the subject truly shines through his teaching and has influenced me to develop an interest in Chemistry. With his guidance, I managed to improve from a U for Promos to a B in my A Levels in a year! He is one of the best tutors I have come across and I highly recommend him to anyone who is struggling with Chemistry!
