National University of Singapore (NUS),

Nanyang Technological University (NTU),

Victoria Junior College (VJC)

BEng (Chemical Engineering) - Second Upper Class Honours,

Postgraduate Diploma in Education (PGDE)

Meridian Junior College,

Raffles Junior College

Full time private tutor

'A' Level H1/H2 Chemistry Tuition,

'O' Level Pure Chemistry Tuition

167A Thomson Road, Goldhill Centre, Singapore 307619


Mr Donnell Koh is the founder and principal tutor of Twig Learning Center, a premier tuition centre for the learning of Chemistry. He was a former lecturer at Meridian and Raffles Junior College. He has been teaching A Level Chemistry for more than 15 years and has helped countless of students to score distinctions for their 'A' Level Chemistry.

In a typical lesson, Mr Donnell Koh uses analogies to help students comprehend abstract Chemistry concepts to enable them to understand and remember better. His lessons are engaging and interesting and students look forward to his lessons as they know they will always walk away feeling enlightened.

His intense passion for teaching and enthusiasm in class gets students excited about the subject. Mr Koh is a popular 'A' Level tutor in Singapore. Every year hundreds of students are personally coached by him, You will not know what you do not know until you attend his classes and many students will attest to that!