Pinnacle Knowledge Learning Centre

Mr Koh is an excellent tuition teacher who is both highly efficient and incredibly patient. He has a rare ability to spot fundamental misconceptions almost instantly, even when I did not realise where I was going wrong. Instead of simply correcting the answer, he takes the time to explain the root of the misunderstanding clearly and patiently, making sure the concept is properly fixed before moving on. His lessons are focused, productive, and very well-paced. I really appreciate how he breaks down difficult topics into simple, manageable steps, which has helped me build much stronger confidence and understanding. Mr Koh is the kind of teacher who does not just help you improve your grades, but also helps you truly understand the subject. Highly recommended!

Mr Koh taught me Pure Chemistry and Physics in Secondary School, as well as H2 Chemistry and Physics in JC. I would say he is one of the best teachers I’ve ever had. His clear, concise notes and engaging teaching style not only helped me keep up with the fast-paced JC curriculum but also sparked my interest in Chemistry and Physics. He’s incredibly dedicated — always ready to clarify doubts, even outside of lesson time. His easy-going personality creates a welcoming classroom environment where asking questions feels natural and encouraged. With his support, I improved from a low B to an A in both H2 Chemistry and Physics for my A Levels. I’m truly grateful for his guidance and care throughout my JC journey.

My name is Ruimin, and I previously studied at Tampines Meridian JC. Mr Koh started tutoring me in Chemistry in mid-2018, and he continued until the end of 2019 when my A-levels concluded. Before joining Mr Koh's class, I was struggling with H2 Chemistry, consistently scoring an E. However, after his tutoring, I was able to achieve an A in my A-levels. Mr Koh has a unique way of breaking down complex concepts step by step. He would create fun and memorable acronyms to help us with memorization. Although these acronyms might have sounded funny, they surprisingly stuck with me throughout my studies. His classes were enjoyable and helped me understand the material much better. Before attending his lessons, I didn’t particularly like Chemistry, but after his teaching, I developed a greater appreciation for it. I’m truly grateful to Mr Koh for his dedication and support, which played a significant role in improving my grades. Beyond just academics, he also taught us valuable lessons on goal-setting and the importance of taking small, consistent steps each day to achieve our long-term objectives. Currently, I’m working in the cybersecurity sector as an IT consultant.

Mr. Koh played a big role in my O- and A-levels, helping me achieve my desired L1R5 and rank points. He knows the syllabus inside out and teaches efficiently with useful exam tips. He also provided study spaces, resources(frfr its stacked), and constant support, always encouraging us to study smarter. PK is very committed to his students’ success, hence I highly recommend him to anyone looking for a dedicated and experienced tutor. :D

Hi, I am Cleavon from Victoria School and Mr Koh has taught me since I was in Secondary 3. He taught me pure physics and chemistry back in 2018. Before joining Mr Koh's tuition group, I had troubles passing both subjects and was really struggling even throughout prelims. However, after his careful and patient guidance I was able to better grasp those topics like kinematics and organic chemistry. I really appreciate that he has allocated time each week to go through any school work that any student has any queries on as well as go through any concepts that I had trouble understanding after the school has taught me. In the end, I got a A2 for Physics during the O levels while a B3 for Chemistry. I really appreciate the amount of time and effort Mr Koh has put in throughout the years he has taught me as he never has no time to answer to my queries even after tuition hours. I am currently studying electrical and electronic engineering in NTU