What our students say
"I dreaded taking Chemistry in JC because I had struggled to keep up with it in secondary school. Joining Shi Neng’s class made the subject far more manageable and, eventually, genuinely enjoyable. His lessons were always thoughtfully structured, breaking down complex concepts into clear points. He constantly created a lively and encouraging environment, which made the demanding weeks leading up to the As feel more bearable. Outside of class, Shi Neng was always prompt in responding to questions, whether about Chemistry content or general advice on navigating JC life. His friendly and approachable nature made it easy to reach out without hesitation, even late at night. (He is not lying when he says you can ask him questions at 1am, I think his sleep schedule is quite messed up) But seriously, I would wholeheartedly recommend joining Shi Neng’s class to anyone who needs support in Chemistry:D"
- Charisse Chai, Grade A, Class of 2025
"I joined Zenith in J1 because I was afraid of being unable to keep up with the rigour of JC chem, especially in my school. Shi Neng's classes allowed me to build a strong foundation in my understanding of Chemistry since the first chapter, which was essential to more complex and difficult topics further on in J2. Shi Neng has always been a caring and funny teacher since day one and I deeply appreciate his guidance and patience. When I felt discouraged, he believed in me and recognised how much effort I put in, even if my results did not always show it. I will always be grateful to have met him as he was key to my appreciation and understanding of the subject. Beyond results, he cared for our mental health and always stressed that results did not define us. Shi Neng constantly encouraged us and pushed us to improve when we felt like we could no longer see any progress. His classes were also engaging and comprehensive, allowing me to feel more confident in my understanding and guided me in my revision. I never felt alone in the long 2 year journey, knowing that he would try his absolute best to help us improve and learn. Thank you Shi Neng, HENG ONG HUAT AH!"
- Alyx Goh, U to A, Class of 2025
"After attending Zenith's trial lesson, I realised it was actually very useful. Shi Neng was really good at breaking down complex topics so that they were easier to understand, and he highlighted small but important details that could easily be missed. Not only that, he promptly responded whenever I had doubts and he is a really approchable tutor! Overall, I would highly recommend Zenith to my friends."
- Ji Seungyeon, S to A, Class of 2025
"I joined Zenith Chemistry midway through J1 after scoring an S for my WA. I had been struggling to understand key concepts despite memorising answer structures, which made it difficult for me to cope with exams and the constant timed practices in school. Under Shi Neng’s guidance, I was finally able to truly understand the concepts instead of just memorising content. He made lessons engaging, fun, and easy to follow. Even though I always had many questions, he patiently answered every one of them and explained until I fully understood. With Zenith’s help, I regained both joy and confidence in studying Chemistry, a subject feared by many students. I would highly recommend Zenith to ALL THE CHEM SUFFERERS OUT THERE!!!"
- Mika Lee, S to A, Class of 2025
"More than a chemistry tutor, Shi Neng has been a mentor since my day 1 in JC. From using analogies to explain complex concepts in acid-base equilibrium to his tips in answering open-ended questions with precise keywords, Shi Neng made learning chemistry so engaging and inspired me to explore deeper into concepts through taking H3 Chemistry in J2! Shi Neng’s comprehensive understanding of the JC curriculum and student life created a JC experience that was comforting knowing that he would go above and beyond for his students through consults, encouraging texts, jokes and pep talks. I vividly remember the presentation of the post JC timeline that he had presented on one of his final Chem lessons, which showed that he really cared about us even after we graduated. Through Shi Neng’s lessons, I’ve not only gained a deeper appreciation for the subject of Chemistry, but also friends and a lifelong mentor that I know will always support us in his capacity in our endeavours!"
- Jonathan Lim, Grade A, Class of 2025
"I joined Zenith early on in J1, when A Divs and school events were frequent and had me missing a lot of classes. Since secondary school, Chemistry was my weakest subject, so I turned to Zenith to save me from failing. Shi Neng was very friendly from the start and he really encouraged and pushed me to do the best I could. Even when it felt like hopeless and had to drop to H1, he kept encouraging me. Gearing up towards Alevels, I texted him every single day with questions and without fail, he replied them all. He would even call me when he was driving home or zoom me at midnight. Our class started at 9am and he would come to class at 7.30-8am for extra consults to clear up any of my questions! He was also a friend and mentor, listening to my crash outs and helping me out :) Shi Neng believed in me when none of my school tutors did, and he's the reason I could improve by 7 grades in 1.5 months!!!!"
- Brighde Khoo, U to A, Class of 2025
"Since secondary school I had always dreaded chemistry, and I was consistently obtaining subpar results in my examinations. When I failed my promos, I knew I had to find a solution ASAP, which was when i decided to join Zenith Chemistry under Shi Neng. He proved to be much more than just a teacher, often going above and beyond to ensure that all his students have understood the required concepts, and would stay back wayyyyy after working hours just to clarify any doubts that I had, despite how late it might have been. Zenith’s concise notes, and Shi Neng’s tireless effort to ensure that all his students are kept engaged and knowledgeable, enabled me to improve drastically in my examinations from an S in my promos to an A in the A-Levels. I definitely recommend all students wanting to do well in Chemistry to join Shi Neng under Zenith as your lifeline! He’s my goat 🐐❤️"
- Lucas Tey, S to A, Class of 2025
"Shi Neng has been my tutor at Zenith since J1, and his dedication truly inspires me. JC Chemistry wasn’t easy, but he always broke down complex concepts clearly and made lessons engaging with humour and relatable analogies. He patiently went through my papers, corrected my conceptual mistakes, and even replied to my late-night questions🙏. I vividly remember him personally driving down to pass me a summary book from Zenith before my prelims because I forgot to collect it😭 He really goes above and beyond for his students. His support pushed me to work hard for my Chemistry A Levels. I’m really grateful to Zenith for playing a pivotal role in my JC Chemistry journey. Would definitely recommend Shi Neng, he’s really goated!"
- Corrinne Lim, U to A, Class of 2025
"I joined Zenith because I couldn’t keep up with my school’s progress and was falling behind. I struggled with the concepts and constantly scored poorly on my tests. Classes with Shi Neng helped me grasp the basic concepts, which gradually allowed me to understand more complex ideas.
Shi Neng created a very comfortable environment in class, making it easy to ask questions when in doubt. He taught and shared jokes, which made lessons more engaging. Shi Neng never gave up on me and believed in me, even when I lost faith in myself due to my lack of improvement in grades.
He constantly encouraged me and provided endless consultations, even via Zoom past midnight. He never once complained, even when he had to explain the same concept repeatedly. Shi Neng pushed me to achieve my final A-level grade while also taking care of my well-being.
I would definitely recommend Zenith to my friends! ONG SHI NENG!!"
- Nicole Wong, NYJC, Class of 2024
"I joined Shi Neng's Chemistry class at the start of J2 because I was struggling alot with shaky foundations from J1, and the J2 topics were all undoable for me. I was failing badly especially because I was training many times a week for NSG and I didn't have much time left to study. Classes with Shi Neng really helped me improve because he not only pointed out the most important parts of every topic, he taught me tricks and techniques to break down the more complex ideas into smaller chunks of information. The revision lessons nearing A levels was also really useful in helping consolidate learning + refine my exam techniques. What I also really appreciated was Shi Neng's dedication - he'd spend loads of time to not only answer my questions/arrange consultations, but to check in on me and my friends to make sure that we were doing okay. He sacrificed his own sleep, personal time and wellbeing for us and he truly went above and beyond to take care of us. Even after we graduated, he helped us in uni/scholarship applications and I am genuinely so grateful for his guidance and help!"
- Jared Lim, HCI, Class of 2022
"Making the jump from Combined Science in Secondary School to H2 Chemistry in JC was definitely harder than I expected. I struggled to understand what was happening in most of my tests and that’s when I decided to join Zenith Chemistry at Potong Pasir. Shi Neng helped me by simplifying complex questions and showed me how easy it is to tackle these questions with a strong foundation. Instead of focusing on the answers of the questions my tutor went deeper into the thought process of solving them which allowed me to tackle unfamiliar questions I came across. Despite the countless questions i asked him, he was eager to help and even provided consultations before any exam. With his support i was able to do really well for my A levels and got A!!"
- Shaarav, TMJC, Class of 2023
"Before joining Zenith, I struggled with grasping the concepts of chemistry(especially organic chem). I was unsure of how and what to study for the subject, given the large number of topics and not knowing what exactly was important to study for my exams. Fortunately, with Shi Neng's guidance, he pointed out to me my weaknesses in the subject, and helped me figure out my strengths. He also helped me identify the key learning points from each topic, which helped me to build a foundational understanding of chemistry. From this, I was able to build upon my knowledge and gain an in-depth understanding of the topics. Furthermore, I would also like to emphasise my tutor’s care for his students' wellbeing and the amount of effort he puts in to help his students. He has spent countless hours after class time for consults, and often checks on us to see how we're doing, even beyond studies. Overall, I would not have been able to improve as much as I did without my tutor's guidance and care."
- Darius Chia, HCI, Class of 2023
"Following my tenure as an Orientation Group Leader, I found myself struggling to cope with my academic responsibilities. Disappointing block test results prompted me to seek guidance from Zenith. From six-hour consults to replying to my questions in the middle of the night, Shi Neng gave his all for his students. Shi Neng's efforts inspired me to work harder, and knowing he was just a Zoom call away made me feel less alone on my A-Levels journey. His engaging classes efficiently covered complex concepts, saving me valuable time. The study tips and comprehensive notes provided by Shi Neng and Zenith proved invaluable, allowing me to focus on practicing more questions and reinforcing my understanding of the material. I'm forever grateful for Shi Neng's guidance, which helped me regain my footing and confidence in my studies."
- Tan QI Ying, CJC, Class of 2024
"During exams, at Zenith, Shi Neng pointed out the common misconceptions I had and corrected my understanding. He provided time for us to practice questions to test our knowledge and created a comfortable environment where we could ask questions. Additionally, Shi Neng’s care for our well-being was really encouraging, as it gave us that extra boost. Honestly, confidence during exams is key, and Shi Neng constantly encouraged us, giving us hope in reaching our goals. I would definitely recommend Zenith to my friends."
- Gladys Tan, NYJC, Class of 2024
"I joined Shi Neng’s class midway through J2 after NSG, and despite starting later than the other students, he made sure I could keep up and fully understand the content. Before joining Zenith, I struggled with H2 Chemistry, but Shi Neng’s ability to break down complex concepts into simpler, more digestible terms really helped me grasp them more effectively.
He always prioritised his students, often freeing up time for consultations—whether it was early in the morning or even the night before the Chemistry papers. Thanks to his guidance, I was able to improve from an E/S to an A. :)
Would highly recommend!"
- Chloe Chua, NYJC, Class of 2024
"The tutors at Zenith are amazing at breaking down complex Economics topics into clear, easy-to-understand explanations. My tutors, Shi Neng and Melvin, are also incredibly responsive—always taking the time to promptly address any questions I have. Outside of class, they gave me solid advice on how to study for my exams, which really helped with my revision. 😁😁"
- Ethan Wong, ASRJC, Class of 2024
"I joined Zenith because I was close to failing my Chemistry mid-year exams in school, and I knew then that I needed extra help. Classes at Zenith were never boring or stressful—Shi Neng was always friendly, resourceful, and incredibly helpful. No matter how late I sent a message, he would reply as soon as possible, which made me feel supported throughout my JC journey. Lessons at Zenith presented content clearly, highlighting the key points, which made studying much more manageable. The lectures held before major exams were especially useful for reconsolidating important concepts, and the practice questions exposed me to a wide range of question types that provedvaluable during the actual exam. Overall, Zenith helped me gain confidence in my Chemistry knowledge and feel much more prepared for exams—and for that, I’m truly grateful!"
- Felicia Wong, NYJC, Class of 2024
"When I first entered JC, I struggled with H2 Chemistry and failed my first Chemistry Lecture Test in J1. I decided to join Shi Neng’s Chemistry class at Potong Pasir and have stayed on until the end of A-Levels.
Shi Neng is probably one of the best tutors I’ve ever had. He’s extremely knowledgeable about the H2 Chemistry syllabus and explains things clearly while keeping lessons engaging. He’s always available if you need help—whether through WhatsApp, consultations, or even during our night study sessions at Zenith.
With the help from Zenith, I’ve been able to consistently score As in internal exams and ultimately in A-Levels. I would highly recommend! :)"
- Bryan Seah, NYJC, Class of 2024
"Before attending Zenith, I struggled with Chemistry and was often frustrated with my performance. I scored an S for promos at the end of J1, and with A-Levels approaching, I knew I needed to make a change.The Chemistry crash course was well-structured and focused, helping me quickly address knowledge gaps and misconceptions. I decided to continue with regular classes under Shi Neng, whose clear and concise teaching style made a huge difference. His lessons were never too fast-paced, and he consistently checked in on our understanding before moving forward.Thanks to his support and effective teaching, my grade improved from an S to an A in the A-Levels—I couldn’t have done it without Shi Neng’s help."
- Tony Liu, VJC, Class of 2024
"I joined Zenith after my MYEs in J1 when I scored a D and was struggling with confidence and key concepts. Thankfully, after joining, my tutor Shi Neng was incredibly patient—explaining concepts in a way that finally made sense and even offering consultations outside of class.
The lessons were engaging, well-structured, and packed with helpful exam strategies. With his guidance, I saw a huge improvement, maintained As and Bs throughout J2, and ultimately achieved an A at A-Levels. I’m really grateful for the support and would highly recommend Zenith to anyone looking to improve their grades!"
- Gillian Koh, DHS, Class of 2024
"After getting a D in Prelims and with less than a month to A-Levels, I was quite worried about my Chemistry grade. I joined Zenith for last-minute preparation and took lessons with Shi Neng. In just the first lesson, I learned vital strategies for tackling Organic Chemistry—an area I had been weak in.
The double lessons in the weeks leading up to A-Levels were especially helpful. We received immediate feedback and clear explanations on timed assessments, all within the same class. Shi Neng made difficult concepts easy to understand and gave personalised feedback tailored to what each student needed to improve on.
Overall, classes with Shi Neng helped me tremendously and played a big part in helping me jump to an A for Chemistry. The warm, supportive environment and concise, effective teaching at Zenith is something I’d definitely recommend to my friends!"
- Jaime Aw, HCI, Class of 2024
"I'm incredibly grateful for Shi Neng's help as my Chemistry tutor. With his guidance, I went from a D to an A—something I never thought possible! His classes are not only effective but also fun, making complex topics much easier to understand.
What I truly appreciate is his ability to explain concepts deeply and clearly, ensuring I really grasp the material. He’s always patient with my questions and provides thoughtful answers. Shi Neng made Chemistry engaging and accessible, and I couldn’t have achieved this without him."
- Kit Kaye, HCI, Class of 2024
"Before joining Zenith, I struggled heavily with comprehending the H2 Chemistry syllabus. As a lazy student who procrastinated, I was extremely far behind with terrible foundations which were essential for Chem. Fortunately, Shi Neng was very patient, taking the time to revise JC1 topics with me, helping me grasp the basics of Chem. Although my results remained abysmal, he never lost hope, forcing me to consult him every week, spending extra hours just to answer my stupid questions. His willingness to help me was heart-warming, which greatly motivated me to get my stuff together as I did not want to let him down. My tutor turned my Chem grade from a perpetual U to an A for A levels, which is honestly unreal for me and I am forever grateful for all his help."
- Howie Wang, SAJC, Class of 2023
"Despite studying hard for my Mid-Year Exams, memorising notes and reviewing tutorials, I failed Chemistry badly, scoring a U. Hence, I decided to reach out for help by attending chemistry lessons at Zenith as the A seemed so out of reach at that time. The Zenith tutors were excellent in making the chemistry concepts much easier to understand. This was especially so for organic chemistry. There were many different reactions, different chemicals and different steps and it was very confusing but Zenith made it much easier to understand, and they broke down the individual steps to make sure we understood everything along the way. The summary sheets were also very helpful as they were a convenient way to refer to and memorise the different reactions and formulas. With a much better grasp of chemistry thanks to zenith, I was ultimately able to get an A for chemistry at the A levels."
- Asher Goh, NYJC, Class of 2023
"As the difficulty level of subjects in JC is way higher than secondary school, I had a hard time catching up with some subjects and did not know how to apply concepts. I decided to join chemistry at Zenith after receiving a U grade for my mid years. Lessons were entertaining and fun which allowed me to be able to remember concepts better! We had many practices where I could learn how to apply the concepts I learnt! nearing exams, my tutor also gave 1-1 consults which helped answer many of the doubts and questions I had! We also had many timed practices nearing A levels which helped me to remember my content and get used to completing my papers in exam conditions which ultimately helped me achieve A at the A levels!"
- Regene Tan, NYJC, Class of 2023
"With the huge academic transition between secondary to JC, I was unable to cope with my studies and constantly scored an S for my exams. After my march WAs, it was a wake up call for me that I had to seek help in order to improve in my studies. after joining the crash courses held by Zenith in june, I decided to sign up for the chemistry class! My tutor is an extremely helpful teacher and his teachings were concise and easy to understand which greatly helped me clear up any misconceptions I had. Leading up to the A levels, we did many timed practices which were marked on the spot, allowing me to correct any mistakes i had in my explanations to hit the marking points!"
- Kate Teo, SAJC, Class of 2023
