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Sec 4 Pure / G3 Biology Tuition Singapore  ·  Face-to-Face & Online  ·  O Level Focused

From B4 or worse to A in O Levels is still possible. Here's the proof.

69.21% of TBT students started at B4 or lower... yet 91% of them go on to score A1/A2/B3 in O levels. With the right method, high syllabus accuracy and patient support, Pure / G3 Biology can still be a subject you do well in L1R5.

Class Options

Choose how your child learns best

Both formats teach the same TBT content and methods — standardised across all tutors.

Weekly lessons — same content as online

Snacks provided during class

Hardcopy worksheets given out every lesson

Lesson recording uploaded after each class

Ask questions live during lesson

Kahoot review games every other week

Recommended for students who are easily distracted online.
Students are also allowed to switch freely between modes each week.

Face-to-Face Classes

Online Classes (Zoom)

From anywhere in Singapore

Weekly lessons via Zoom — same content as F2F

✓ No travel time — join from home or anywhere

Softcopy worksheets sent before each lesson

Lesson recording uploaded after each class

Ask questions live during lesson via Zoom chat

Kahoot review games every other week

Mic/camera not required — communicate via Zoom chat.

BOTH FORMATS INCLUDE:

TBT Notes + Flashcards

24/7 WhatsApp Support

CAQ Model Answers

 Extra Practice Papers

What We Cover

What TBT Sec 4 classes cover

Phase 1 — Teaching the Syllabus (Mar – Aug)

✓ Each Sec 4 topic taught in-depth, ahead of school pace

Lesson recordings and worksheets available for all past topics missed

Phase 2 — Prelim Intensives (May – Aug)

Focused revision on weak areas — not a repeat of everything

All topics of the entire O Level Pure / G3 Biology syllabus recapped (~2 topics per lesson)

Real prelim questions to prepare for Prelims

Phase 3 — O Levels Intensives (Aug – Nov)

Focused revision on weak areas — not a repeat of everything

All topics of the entire O Level Pure / G3 Biology syllabus recapped (~2
topics per lesson)

✓ Real O Level and prelim questions to prepare for O Levels

Students can join any time of the year — all lesson recordings and worksheets are made available to them for what they missed.

​Sec 4 Topics:

11. Infectious Diseases

12. Nutrition in Plants

13. Transport in Plants

16. Reproduction in Plants

17. Reproduction in Humans

18. Inheritance

14. Organisms and Their Environment

15. Molecular Genetics

​Exam Techniques — Built Into Every Lesson

Answering skills — FIRED method for full marks in OEQs

Data-based questions — how to interpret graphs and tables

Application questions — linking topics to unseen scenarios

Paper 3 practical — technique, table drawing, graph plotting

Time management — which questions to prioritize and when to move on

Past year paper (TYS) practice — topic by topic throughout the year

Exam technique is not a separate module — it is embedded in every lesson from the first class.

TBT Hall of Fame
Real Sec 4 results

69.21% of TBT students started at B4 or lower. These are some of the biggest jumps.

Screenshot 2026-04-29 at 16.41.03.
Screenshot 2026-04-29 at 16.40.49.

F9

A1

Biggest jump on record

E8

A1

Biggest jump in 3 months

C5

A2

Average grade jump

Keefe Dhoby Ghaut Class_edited_edited.png

TBT By The Numbers

98

Different Schools

2.3

Avg. Grade Improvement

912+

Happy Parents & Students

91%

Score A1, A2 or B3

69.21%

Started at B4 or Lower

1 in 2

Score Distinction

What Sec 4
TBT students are saying

WhatsApp Image 2026-04-29 at 16.19_edite

★★★★★

E8 → A1 in 3 months

"Unlike school teachers who just merely read off the slides, these tutors had somehow made such a content heavy subject into something engaging... The night before bio O-levels, they were all staying up till midnight to answer their students' questions... it really showed how much they care for their students."

Yong Zheng, Sec 4 in 2024

review b

★★★★★

F9 → A1

"After using TBT's notes and memorising all the shortcuts I managed to get the model template answer and memorise it easily... TBT is a really good option because I joined and I managed to get from a failing student to an A1 student."

Gwen, Sec 4 in 2024

review c

★★★★★

C6 → A2

​"Excellent tutor in terms of the amount of resources he has... Very knowledgeable and has his own personal touch to everything he does and genuinely cares for the students. Lessons are very beneficial and 100% would recommend for O Level taking students. He got me from a C6 (my Sec 3 EOY grade) to A2 in O Level 🙏"

Aryan, Sec 4 in 2024

What a TBT Sec 4
lesson
actually looks like

Concept first

Topic is explained with in-depth understanding — not just skimming through content. Students are asked questions throughout to keep them engaged.

Memory shortcuts

Mnemonics and memory hacks introduced every topic. Students have
a much easier time memorising chunks of bio content.

OEQ practice and exam skills

Past year questions attempted and gone through in class. FIRED method applied to every answer.

Kahoot review

End-of-lesson review game every other lesson. Motivates students to pay attention during class — and students really look forward to it.

Everything your child gets
as a
TBT Sec 4 student

TBT Notes

Every Paper 2 answer is structured using a tested framework. Students know exactly what to write — and what to leave out — to earn full marks.

Flashcards

Ready-to-use per chapter. Extremely powerful memorisation tool.

Lesson Recordings

Full recording uploaded after every lesson, with worksheets and teacher's inkings — rewatch any session anytime.

CAQ Model Answers

Commonly asked exam questions with full model answers. Know exactly the key
words examiners want.

Practice Papers

TYS-aligned practice papers curated from actual past year prelim papers.

24/7 WhatsApp Help

Ask questions anytime — our tutors are eager to help. Even if it's midnight before Os.

Kahoot Review Games

End-of-lesson review every other lesson. Engaging, competitive, and actually improves retention.

Homework Rewards

Complete homework and earn
Homework Points — rewards given out after every term.

Meet the TBT team

Ms Chelsea

Tutors' circle PFP - Website About Page.

Ms Jamie

Tutors' circle PFP - Website About Page.

Mr Keefe (Founder)

TBT Founder

Ms Ng (Ex-MOE Teacher & Syllabus Reviewer)

Tutors' circle PFP - Website About Page.

Quality control — how TBT ensures every Sec 4 class is excellent:

All tutors pass rigorous screening — can take 1+ month before teaching their first class

Weekly tutor coaching sessions — every TBT tutor is mentored by Mr. Keefe each week

Every class ends with a student feedback form — reviewed and acted on weekly

FAQ

Questions Parents and Sec 4 Students Always Ask

How is the sec 4 programme structured across the year?

+

A: The Sec 4 programme is split into three phases, each building progressively towards exam readiness:

1. Content Teaching Phase (Dec - May)

2. Prelim Intensive Lessons (May - Aug)

3. Os Intensive Lessons (Aug - Nov)

Students are allowed to join anytime throughout the year, provided there are available spots for the class. Lesson recordings and worksheets are fully provided for those lessons you missed prior to joining.

My child is already in Sec 4 — is it too late to join?

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A: Not at all. 69.21% of TBT students joined at B4 or lower, and the average TBT student improved 2.3 grades (~C5 to A2). Many students who joined post-prelims have gone from C6 to B3 in two months. That said, the sooner a student starts fixing bio by joining TBT, the better.

What if my child’s school has not covered certain topics yet?

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A: Students are welcome to join even if certain topics have not been covered in school. Rest assured, all topics are already part of our programme and will be covered in due course. If you missed lessons where we first taught a topic, they’ve all been recorded for you along with the full worksheets.

Students have also said they greatly benefitted from first learning a topic at TBT, because it became so easy to understand when their school later taught it.

Can my child try a lesson before committing?

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A: Students are welcome to join even if certain topics have not been covered in school. Rest assured, all topics are already part of our programme and will be covered in due course. If you missed lessons where we first taught a topic, they’ve all been recorded for you along with the full worksheets.

Students have also said they greatly benefitted from first learning a topic at TBT, because it became so easy to understand when their school later taught it.

Face-to-face or online — which should my child choose?

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A: Both formats cover the same content and use the same TBT methods. F2F is at Burlington Square, S(189649). Online lessons are held on Zoom. Choose based on what suits your child better - your child can also switch between formats from week to week.

How many students are in a class?

A: 20-25 per timeslot. Sometimes, it doesn't even reach that number since some students may opt to join online on a particular week.

If you were to come early, you can sit at the front. If you have questions, you can come earlier or stay back a bit later to ask your tutor.

None of our students found it impossible to get their questions answered, since we allow them to message their tutor via WhatsApp 24/7. Many of our students find the class size engaging and effective for learning!

If you still are concerned, try a trial lesson – and see why students still love the format – and the results it produces. 

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What if my child misses a class?

A: Full lesson recordings along with all relevant worksheets / answer keys are uploaded after every class. Your child can catch up anytime, anywhere.

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Does my child need to turn on the camera for online lessons?

A: No — camera is not required. Students can respond to tutor questions via the Zoom chat.

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Is there a lot of homework?

A: Small weekly set — highly recommended, but not compulsory. Students who complete it earn Homework Points – rewards given out after each term.

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How do I find out about fees and available timeslots?

A: WhatsApp us — our friendly staff will share the most updated fees and timeslot availability ASAP.

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What’s the difference between the timeslots?

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A: We offer different class timings to suit students’ schedules. Our staff will share the latest schedule via WhatsApp to ensure you receive the most updated information. No matter which timeslot you go to, the content and methods taught is the same across tutors, as we standardise it for every lesson.

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