Mr Koh is an extremely dedicated and experienced teacher. He is able to bring to life chemistry concepts and explain in a clear and effective manner. The learning materials at Twig were great at training & teaching us students how to apply these concepts to difficult questions and scoring effectively in exams. On a personal level, Mr Koh is also very patient and approachable and takes time & effort to respond to your queries even outside of class time! It’s not easy to find a teacher w that much dedication and commitment to teaching. 🙂
