I really enjoyed Mr Koh’s lessons! He is super passionate and willing to help each and every one of us. He would mark any homework we submit, as well as take the time to respond to our questions even outside of class (when we message him on Whatsapp). Nearing A-Levels, I really appreciated how he curated challenging past year questions into a booklet to make sure that we would be well-prepared for the exam! I improved so much under his tutelage 🙂 Would highly recommend anyone who is struggling with Chem to join Twig!