By Donnell Koh | 11 February 2019
Mr Koh is one of the most patient and dedicated teachers I’ve met. I really appreciate how he never fails to clarify my doubts and goes the extra mile to ensure that I have a complete understanding of certain chemistry concepts. His lessons benefited me greatly as he explains complicated concepts in a way which was easy to understand and I saw gradual improvement in my chemistry grades. Thank you so much Mr Koh!