Secondary 3 is when the pressure on Science students increases sharply. Combined Science requires students to master two distinct disciplines simultaneously, each with its own concepts, terminology, and requirements for answering. Students who struggle at this stage usually do so not because they lack ability, but because they have not been given a structured way to organise their knowledge or apply it under exam conditions.
In school, large class sizes make it difficult for teachers to consistently address individual gaps. Many parents find it hard to pinpoint exactly where their child is falling behind, and without targeted support, those gaps compound as the O-Level year approaches.


At TLS Tutorials, our Combined Science tuition is designed to address this directly. Before any lesson is planned, our tutors take time to understand each student’s specific weaknesses, learning habits, and answering patterns. Lessons are then built around what that student actually needs, aligned to the MOE syllabus.
Our Meta-Cognitive Learning Approach helps students become more aware of how they think through Science questions. Instead of passively receiving content, students learn how to organise concepts, recognise question demands, and choose a suitable response method. This gives them a more reliable way to manage their chosen Science combination across Sec 3 and Sec 4.
O-Level Combined Science is taken by upper-secondary students who study two Science disciplines within one subject. The available combinations are Physics/Chemistry, Physics/Biology, and Chemistry/Biology. The syllabus develops scientific literacy, critical thinking, and the ability to apply concepts in real-world and examination contexts, and is aligned with MOE’s Science Curriculum Framework, which is built around inquiry, innovation, and inspiration.
Key features of the O-Level Combined Science syllabus:
Students need a method to organise what they know, interpret what is being asked, and apply the right concepts accurately under exam conditions. This is what our combined science tuition in Singapore is designed to develop.
At TLS Tutorials, our Meta-Cognitive Learning Approach applies three core principles to every tuition session your child attends for Combined Science:

Students organise key concepts, definitions, and processes from their chosen Science combination. This helps them retrieve the right information when moving between Physics, Chemistry, or Biology topics during practice.
Students learn to identify what is being tested, interpret graphs and experimental data, and apply the right concept in context, directly addressing one of the most common reasons marks are lost in O-Level Science.


Students are trained to write clear, well-reasoned answers using frameworks aligned to O-Level marking requirements, connecting concepts effectively so their knowledge translates into performance.
Our Combined Science tuition equips students with subject retention techniques and exam answering skills, building the confidence they need to perform in their O-Level Biology, Chemistry, and Physics papers.
Focus Area | How We Develop It |
|---|---|
Skills We Develop | Students learn to define scientific terms, explain biological and chemical processes, interpret data and diagrams, and answer structured exam questions with precision. They also build the habit of drawing connections across Combined Biology, Chemistry, and Physics topics. |
How Lessons Are Run | Lessons blend concept delivery, guided questioning, visual notes, mnemonics, and exam practice. Educators pay close attention to the students’ thinking process, not just whether the final response is correct. |
Examination Alignment | Lessons follow the MOE O-Level Combined Science syllabus and are structured around the question types and assessment formats students will face in their actual examinations, including school-based tests and the O-Level papers. |
Discover how our tuition centre’s tailored teaching methods and dedicated tutors have helped Secondary 3 and 4 students strengthen their understanding and gain confidence in O-Level Combined Science.
Jai Panchmatia2026-01-15Trustindex verifies that the original source of the review is Google. I joined TLS quite late in the school year. Roughly around 5 months before my O level exams. At first, I was only doing physics with Mrs Esther, however, after 2 weeks with her, I had made the decision to do chemistry lessons with TLS as well. When I first went in, I was very worried because my chemistry and my physics were sub-par at best and was nervous that I wouldn’t be able to learn and prepare all I would need in time for my o levels. I was wrong. Firstly, the environment that TLS creates for students to work is amazing. It’s calm, quiet and allows us to easily focus on whatever we are doing. Moreover, the teachers at TLS are exceptionally nice and supportive people that give you the time patience and understanding that you need. Secondly, to do with the tutorials itself, not only are the tutors very kind, but they are very thorough and extensive in helping us understand what we are lacking and what we require help with. Their materials are amazing and they also made a very enjoyable experience to simply be in the classroom and learn. Besides academics however, TLS also does a wonderful job at ensuring we stay organised and on top of our work, with a comprehensive study plan as well as many files and binders to neatly keep or work in. I saw that this truly helped my studying and my academics as generally, I am a very messy and disorganised person. Overall, TLS has been able to help me in multiple ways. Within the span of four months, I was able to catch up on everything I was missing, they helped me start scoring better gradually as I continued to do mock test papers, and with their help, I was able to stay on top of everything with wonderful organisation and amazing planning done by the admin team. The centre is filled with amazing teachers, with their teaching being top-notch and their kindness and care for our well being also being a priority to them. Thanks to TLS, my physics and chemistry grades rose from a D7 and F9 in prelims to an A2 and B3 in the o levels, respectively. My sincere thank you to the entire TLS team and a special thank you to Mrs Esther for her dedication and support for my o levels. veleda simp2026-01-14Trustindex verifies that the original source of the review is Google. amazing tuition centre with perfect vibes and an amazing awesome teacher who coached me in amath Dasha Lee2025-12-12Trustindex verifies that the original source of the review is Google. Ms Winnie is a nice and understanding teacher Star 672025-08-08Trustindex verifies that the original source of the review is Google. Started here in P4 Math, grade has remained consistent at A*. Continued with TLS academy until sec 4 . O Level A Math grade was A1. Teachers here are kind and understanding, they are adaptable and are able to adapt their teaching style to help me with understanding content. Would highly recommend people to join their classes. Karin Kan2025-08-02Trustindex verifies that the original source of the review is Google. My P6 daughter started math tuition at TLS this year and enjoys coming to class each week. She says this is her favourite tuition class. Ms Esther and Abel have periodically run diagnostics tests on her math abilities which really help in identifying the areas where she needs to work on. I see her math grades improving and am hopeful she will do well in the PSLE. Tania Han2025-07-31Trustindex verifies that the original source of the review is Google. Mrs Esther is extremely patient and caring, I went from a 46% to a 87% in less than 5 months! The centre is very accommodating and I would highly recommend Sherry Lim2025-07-31Trustindex verifies that the original source of the review is Google. My daughter enjoys her lessons at TLS Tutorials which is specifically tailored to her syllabus based on her needs by Teacher Esther. The class is small, personable and conducive for learning and interaction with the teacher. The learning experience coupled with the very warm and supportive TLS team make us feel welcome right from the start ! summer yeo2025-07-31Trustindex verifies that the original source of the review is Google. good tutors that teach well 👍🏻 Kenny Chen2025-07-31Trustindex verifies that the original source of the review is Google. I couldn’t recommend them more highly. Most tuition centres are about revision, homework and test preparation TLS does that and more; they have monthly diagnostics test and check ins with the parents which is helpful for us to understand our children’s progress. Most importantly through these interactions, you feel they truly have the heart for your kids not just academically but also for their well being ! James S2025-03-11Trustindex verifies that the original source of the review is Google. We've seen a complete transformation in our daughters' attitude towards Maths since they started tuition here! They now look forward to their Maths lessons, which is a testament to the engaging and effective teaching methods used. We're grateful for Ms Giana's dedication and passion for teaching Maths and Abel's passion for caring for the students. Highly recommend!
At TLS Tutorials, we prepare your child for O-Level Combined Science success with targeted support that sharpens problem-solving skills, strengthens exam techniques, and fosters their love for Science.
With a maximum of four students per class, every student receives direct attention, so no one falls behind.
With years of combined teaching experience, our educators are well-versed in current O-Level Science requirements and stay updated with MOE syllabus developments.
Every lesson is planned around the current MOE Combined Science syllabus. Nothing outside the scope of their exams, and nothing that will be tested left uncovered.
From response techniques to data interpretation and timed practice, every session is calibrated to examination requirements so students leave more prepared
Students are taught to think strategically by identifying what is being asked, applying the right concepts, and constructing answers that meet marking criteria.
Lesson duration: 2 hours (including 10-minute break)
Class size: 1-4 students
*Each Science subject within Combined Science—Chemistry, Physics, or Biology—is treated as an individual subject, with lessons and fees applied separately to ensure focused, in-depth learning in each area.
At TLS Tutorials, lessons are sequenced around individual gaps and high-weightage topics, securing foundational concepts first, so students are on solid ground when application and data-based questions arrive.
Every session at TLS Tutorials is run the same way, designed to build understanding progressively, address individual gaps, and keep students and parents informed throughout.
Every student begins with an initial diagnostic assessment to identify topic gaps and answering habits. Follow-up diagnostics are conducted periodically to track progress and update lesson priorities.
Tutors introduce or reinforce concepts using targeted materials, guiding students to organise knowledge into a clear mental framework.
Students work through exam-style questions with tutor support, focusing on recognising question patterns, applying the right concepts, and developing answering habits that hold up under exam conditions.
With a maximum of four students per class, every session allows for discussion. Students ask questions freely, explore concepts, and learn from what their classmates raise.
After every lesson, tutors update each student's study plan and share feedback with parents through a dedicated WhatsApp group, keeping everyone informed on progress and next steps.
Twice a year, students receive a comprehensive report mapping progress across all topics, giving parents a clear picture of strengths, persistent gaps, and upcoming adjustments to the learning plan.
Ready to see our teaching approach in action? Schedule a free trial class to experience it firsthand.
When students join our O-Level Combined Science tuition, they will gain a deep understanding of Physics, Chemistry, and Biology concepts aligned with the MOE syllabus.
Students learn to measure accurately using SI units, handle laboratory apparatus safely, and account for precision and errors in experiments. These foundational skills prepare them to approach practical and theoretical questions correctly from the start.
Through topics like kinematics, Newton’s laws, turning effects, and energy conversions, students develop a deeper understanding of how forces influence the physical world and how energy is transferred and transformed across different systems.
Students will study particle theory, chemical bonding, and the periodic table, building their ability to explain the properties of materials and how they react. Chemical calculations and factors affecting reaction rate are also covered, giving students the tools to handle quantitative Chemistry questions with accuracy.
From cell structure to human nutrition, transport systems, respiration, and diseases, students build a solid understanding of the biological processes that sustain life. Topics in genetics, reproduction, and ecosystem interactions are also covered, preparing students for the full scope of Combined Biology.
Students learn to connect scientific principles to real-life applications, from sustainable energy solutions to the role of electromagnetic waves in technology.

Monday – Friday
10AM – 7PM
Saturday
9AM – 6PM
Closed on Sundays and Public Holidays
By providing a nurturing and stimulating environment, we help students overcome their challenges and achieve their full potential in Combined Science.
Yes. Many Junior Colleges in Singapore accept students who took Combined Science, provided they meet their specific subject and grade requirements. It’s important to check the admission criteria for each JC directly, as prerequisites vary by course and institution.
With consistent study, a good understanding of core concepts, and regular practice of exam-style questions, Combined Science is manageable. It covers less depth than Pure Science but it still demands disciplined learning across two disciplines. Addressing gaps early and developing strong exam technique makes a significant difference to both pass rates and overall grades.
Combined Science is generally considered less in-depth than Pure Science, which some students find easier. However, “easier” is subjective. It still requires mastering two sciences, applying their concepts to different question types, and performing under exam conditions. How well a student does ultimately depends on their learning habits, the guidance they receive, and how early they start building a solid foundation.
We recommend starting Combined Science tuition in Secondary 3. Beginning early gives your child enough time to build a solid conceptual foundation, practise core skills, and address any learning gaps before the crucial O-Level year.
Call us at +65 8803 6858 or email [email protected] to learn more. You can also register for a free trial lesson to experience our teaching approach before deciding to enrol.
All combined science tuition sessions are conducted on-site at our centre near Newton MRT. We do not currently offer online tuition for this programme.
Combined Science is offered at the upper secondary level, specifically in Secondary 3 and Secondary 4, as part of the O-Level pathway. Students choose one of three science combinations: Physics/Chemistry, Physics/Biology, or Chemistry/Biology. The subject is examined at the end of Secondary 4 as part of the GCE O-Level national examinations.
TLS Tutorials is an MOE-registered tuition centre in Singapore providing Math & Science programmes for Primary and Secondary school students. Located near Newton MRT, we offer a supportive learning environment.
10 Winstedt Road, Block A #02-04 / #02-08
Singapore 227977
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