Class size
Maximum 4 students
Grouped by course and learning pace
Secondary
Math Tuition for St. Gabriel's Secondary School Students
Secondary Math support for St. Gabriel's Secondary School students: Mathematics at G1, G2 or G3. Lessons match the student's course and learning pace.
St. Gabriel's Secondary School (SGSS), often known as "St. The school was founded in 1953. DeepThink supports St. Gabriel's Secondary School students in Mathematics at G1, G2 or G3, with lessons matched to their current course.
PSLE cut-off point for St. Gabriel's Secondary School
MOE publishes the PSLE score of the first and the last student posted into each school at each posting group. Below are St. Gabriel's Secondary School's figures for the 2026 Secondary 1 intake — the 2025 PSLE cohort. The last student's score is what is usually meant by the school's cut-off point.
| Posting group | Non-affiliated | Affiliated |
|---|---|---|
| Posting Group 3 | AL 10–15 | AL 11–22 |
| Posting Group 2 | AL 21–24 | AL 23–25 |
| Posting Group 1 | AL 25–28 | AL 26–28 |
Cut-off points move by a few points from year to year, and not every student who met the cut-off was posted here — some are tie-broken out. Read these as a guide to where a school sits, not as a threshold to clear.
Actual 2026 Secondary 1 intake, from MOE School Finder — last verified on 12 August 2026. MOE School Finder ↗
What this intake means for the Maths your child will sit
A posting group decides the level a student takes each subject at from Secondary 1, not only which class they are in — and under Full Subject-Based Banding a student who did well enough in a subject at PSLE can take that subject at a more demanding level than their posting group's default. So the score above is the start of the Mathematics your child sits at St. Gabriel's Secondary School, not the whole of it.
- Secondary 1 G3 Math syllabus
Posting Group 3 students take Mathematics at G3 by default — the fastest of the three, and the usual route into Additional Mathematics from Secondary 3.
- Secondary 1 G2 Math syllabus
Posting Group 2 students take Mathematics at G2 by default, covering most of the G3 content at a steadier pace.
- Secondary 1 G1 Math syllabus
Posting Group 1 students take Mathematics at G1 by default, building the foundations in smaller steps.
- Secondary Math syllabus, all four years
The MOE topic list for every year and every subject level, so you can see where the syllabus goes after Secondary 1.
About St. Gabriel's Secondary School
St. Gabriel's Secondary School (SGSS), often known as "St. Gabs" for short, is a government-aided Roman Catholic all-boys' secondary school in Serangoon, Singapore. Founded in 1953, it is affiliated with St. Gabriel's Primary School and Catholic Junior College. It is one of the seven institutions governed by St Gabriel's Foundation, as well as one of the seven Gabrielite schools in Singapore.
Founded: 1953
Math tuition alongside St. Gabriel's Secondary School
Classes capped at 4 students, grouped by learning pace and matched to your child's level. Or keep reading — the rest of this page covers St. Gabriel's Secondary School in detail, including admissions and FAQs.
School Overview
St. Gabriel's Secondary School is a government-aided, all-boys Roman Catholic institution situated along Serangoon Avenue 1 in Singapore. The school was founded in 1953 by the Gabrielite Brothers and opened its doors with an initial cohort of 212 students. Over the decades, it has developed into a well-established secondary school with a strong emphasis on character formation and academic discipline.
The school operates on a single-session model, which allows for a structured daily schedule with afternoons dedicated to co-curricular activities and enrichment. Its motto, Labor Omnia Vincit, translates to "Labour Conquers All" and reflects the school's belief in the value of perseverance and sustained effort. The core values guiding school life are Respect, Resilience, Responsibility, and Care.
St. Gabriel's Secondary maintains affiliations with St. Gabriel's Primary School and Catholic Junior College, providing students with smoother transitions at key educational milestones. The school runs an Applied Learning Programme (ALP) centred on STEM with a focus on the Future of Transportation, specifically Flight and Aerospace. It also offers a Learning for Life Programme (LLP) in Community Youth Leadership, which develops students' capacity for service and civic responsibility.
Admission Process
Admission to St. Gabriel's Secondary School at the Secondary 1 level takes place through the annual PSLE posting exercise and the Direct School Admission (DSA) scheme.
For the 2025 intake (based on 2024 PSLE results), the indicative cut-off points were as follows: Posting Group 3 ranged from 15 to 22 for affiliated students and 15 for non-affiliated students; Posting Group 2 ranged from 23 to 25 for affiliated and 23 for non-affiliated; Posting Group 1 was 28 for affiliated and 27 for non-affiliated. These figures represent the score of the last admitted student and may shift from year to year.
Students from St. Gabriel's Primary School receive affiliation priority during the posting process, which can provide an advantage for entry. The DSA pathway is available for students with demonstrated abilities in areas such as Debating, National Cadet Corps (Air and Land), sports including Football and Judo, and leadership. DSA applications typically open in May and close by June, with outcomes released by September.
The school implements Full Subject-Based Banding (SBB), which allows students to study individual subjects at different levels based on their aptitude. This approach supports more personalised learning rather than placing students into fixed academic tracks. St. Gabriel's does not offer the Integrated Programme; students follow the O-Level pathway.
Curriculum and Academic Programme
St. Gabriel's Secondary delivers a curriculum aligned with Ministry of Education standards. Core subjects include English Language, Elementary Mathematics, Additional Mathematics, the Sciences (Physics, Chemistry, Biology), and Humanities (Social Studies paired with Geography or History). Elective offerings span Art, Chinese, Malay, Tamil, Principles of Accounts, Nutrition and Food Science, Literature in English, and Music. Under Full Subject-Based Banding, students may take subjects at different levels according to their individual strengths.
The school has received the Academic Value-Added Award for O-Level Examinations continuously since 1998, indicating that students consistently make strong progress relative to their PSLE entry scores. In 2024, graduates achieved solid pass rates across key subjects, and a significant proportion of the cohort earned distinctions in national assessments.
The Applied Learning Programme in STEM provides hands-on learning through aerospace-related projects, giving students practical exposure to scientific and engineering concepts. Bilingual education initiatives support multilingual development across the student body.
For students seeking additional support in Mathematics — whether Elementary or Additional — a structured external programme can complement what the school provides. DeepThink, a math tuition centre, offers programmes aligned to the O-Level Mathematics syllabuses that some families at schools like St. Gabriel's have found helpful for building confidence and consistent exam technique.
Facilities and Co-Curricular Activities
The school campus includes classrooms equipped with interactive learning technology, well-resourced science laboratories, computer labs, a library, and a sports complex. Arts studios and multipurpose halls provide space for creative and performing arts activities. The school also features barrier-free access and dedicated support facilities for students with special educational needs.
Co-Curricular Activities (CCAs) are a central part of school life, with more than 20 options available across several categories:
Sports and Games: Badminton, Football, Floorball, Golf, Judo, Softball, and Table Tennis.
Uniformed Groups: National Cadet Corps (Air and Land), National Police Cadet Corps, Red Cross Youth, and Scouts.
Clubs and Societies: Debating, English Drama, and Infocomm Club.
Performing Arts: Concert Band and Guitar Ensemble.
Service and Leadership: Community Youth Leadership initiatives run through the Learning for Life Programme.
CCA involvement contributes to character development and teamwork, and strong CCA records can support DSA applications for incoming students. The Red Cross Youth unit received the Director's Award in 2024, reflecting the quality of participation and commitment within the school's uniformed groups.
Student Life and School Culture
Daily life at St. Gabriel's Secondary is shaped by the school's Catholic ethos and its emphasis on discipline, mutual respect, and care. The school maintains a structured routine beginning with morning assemblies, and upholds clear expectations around conduct, including a firm stance against bullying.
Class sizes are typically around 40 students, and the school maintains pastoral care structures that include regular check-ins, mental health and well-being support, and resilience-building workshops. Special Educational Needs Officers are on staff to provide targeted assistance for students who require it.
The all-boys environment fosters strong peer bonds, and students — known as Gabrielites — often describe the school community as close-knit and supportive. Parents and students have noted that the culture encourages self-discipline and personal responsibility.
For families preparing for the transition from primary to secondary school, some practical steps can ease the adjustment: establishing a daily study routine of one to two hours, joining a CCA early to build social connections, and making use of the school's pastoral support channels when challenges arise.
Frequently Asked Questions about St. Gabriel's Secondary School
Is St. Gabriel's Secondary School a good school?
St. Gabriel's Secondary School is a government-aided all-boys institution that offers the O-Level academic pathway along with specialised programmes in STEM (Flight and Aerospace) and Community Youth Leadership. It has held the Academic Value-Added Award since 1998, indicating consistently strong student progress. The school places emphasis on character development, pastoral care, and a broad range of co-curricular activities.
Is St. Gabriel's Secondary School a co-educational school?
No. St. Gabriel's Secondary School is an all-boys school, enrolling male students from Secondary 1 through to Secondary 4 or 5. This single-gender setting is part of the school's Gabrielite tradition and Catholic heritage.
Does Singapore officially rank secondary schools?
The Ministry of Education does not publish official rankings for secondary schools in Singapore. Parents evaluating schools typically consider factors such as PSLE cut-off points, available programmes, CCA offerings, and school culture rather than a single ranking metric.
What are the PSLE cut-off points for St. Gabriel's Secondary School?
For the 2025 intake based on 2024 PSLE results, indicative cut-off points were: Posting Group 3 — affiliated 15 to 22, non-affiliated 15; Posting Group 2 — affiliated 23 to 25, non-affiliated 23; Posting Group 1 — affiliated 28, non-affiliated 27. Affiliated students from St. Gabriel's Primary School receive priority consideration. These figures represent the last admitted student's score and may change annually.
Where is St. Gabriel's Secondary School located?
The school is situated at 24 Serangoon Avenue 1, Singapore 556140, in the Serangoon neighbourhood.
What O-Level subjects does St. Gabriel's Secondary School offer?
The school offers English Language, Elementary Mathematics, Additional Mathematics, Biology, Chemistry, Physics, Social Studies, Geography, History, Chinese, Malay, Tamil, Principles of Accounts, Nutrition and Food Science, Art, Literature in English, Music, and Physical Education. Subject-Based Banding allows students to take individual subjects at different levels based on their strengths.
What CCAs are available at St. Gabriel's Secondary School?
CCAs span several categories. Sports include Badminton, Floorball, Football, Golf, Judo, Softball, and Table Tennis. Performing arts options are Concert Band, Guitar Ensemble, and English Drama. Uniformed groups comprise NCC (Air and Land), NPCC, Red Cross Youth, and Scouts. Clubs include Debating and Infocomm Club. Community Youth Leadership activities are also offered through the Learning for Life Programme.
Is St. Gabriel's Secondary School affiliated with other schools?
Yes. The school is affiliated with St. Gabriel's Primary School, which provides affiliation priority during PSLE posting, and with Catholic Junior College for post-O-Level pathways. These affiliations support continuity for students moving between educational stages.
What is the Applied Learning Programme at St. Gabriel's Secondary School?
The Applied Learning Programme focuses on STEM with a specific emphasis on the Future of Transportation, covering Flight and Aerospace. Students engage in hands-on projects that apply scientific and engineering principles to real-world transportation challenges.
What is the Learning for Life Programme at St. Gabriel's Secondary School?
The Learning for Life Programme centres on Community Youth Leadership. It develops students' leadership abilities through service projects, community engagement, and integrated character and citizenship education.
What are the school fees for St. Gabriel's Secondary School?
As a government-aided school, monthly fees are kept affordable, though the exact amount depends on the student's citizenship status. Current fee schedules are published on the MOE website. Financial assistance schemes are available for eligible families, and the school's administrative office can provide guidance on applications.
How can parents contact St. Gabriel's Secondary School?
Parents may contact the school by phone at 6288 9470 or by email at [email protected]. The school's official website also provides information on admissions, curriculum, and student support services.
Does St. Gabriel's Secondary School offer Subject-Based Banding?
Yes. The school implements Full Subject-Based Banding, which allows students to take individual subjects at different levels according to their aptitude and performance. This replaces the previous fixed-stream model and gives students greater flexibility in their academic programme.
Does St. Gabriel's Secondary School support students with special educational needs?
The school has Special Educational Needs Officers who provide support for students who need it. The campus includes barrier-free access features. Parents seeking specific accommodations should contact the school directly to discuss available provisions.
How can students strengthen their Mathematics results at St. Gabriel's Secondary School?
Students can build stronger Mathematics foundations through consistent daily practice, making use of school-provided resources, and seeking help from their teachers early when difficulties arise. Some families also explore external support options such as DeepThink, a math tuition centre that offers structured programmes aligned to the O-Level Elementary and Additional Mathematics syllabuses.
Is St. Gabriel's Secondary School a single-session school?
Yes. The school runs on a single-session schedule, with formal lessons in the morning and afternoons available for co-curricular activities, enrichment programmes, and independent study.
How DeepThink supports St. Gabriel's Secondary School students
G1, G2, G3 Mathematics support for the national secondary pathway at St. Gabriel's Secondary School. Classes follow the student's actual Mathematics subject level.
We prepare students for the paper their year sits: O-Level or N-Level, or the Singapore-Cambridge SEC from 2027.
Your child’s posting group sets the level they start Mathematics at. Under Full Subject-Based Banding, they may take it at a different level.
Additional Mathematics support is available for students taking that subject; we check the actual course and assessment requirements.
Classes are capped at 4 students and grouped by learning pace, with practice focused on the gaps shown in schoolwork.
The programme
What your child gets at DeepThink
We start with the Mathematics your child is studying now. Lessons revisit gaps, build clear reasoning and practise questions suited to their current course and assessments.
Weekly duration
1.5 hours
Secondary support
S1 – S5
School pathways
Mathematics at G1, G2 or G3
Frequently asked questions
Clear answers for parents
Which Math class suits a St. Gabriel's Secondary School student?
We teach Mathematics at G1, G2 or G3. We use the student's current Mathematics course, year and schoolwork to choose a class. Students learn with others studying the same course at a suitable pace.
Does the posting group determine my child's Mathematics class?
It indicates the usual starting subject level, but Full Subject-Based Banding allows students to take subjects at different levels. Tell us the Mathematics level shown on your child's timetable or assessments so lessons match what they actually study.
When should a secondary student start tuition?
Start when schoolwork reveals gaps in understanding or confidence. Earlier support can strengthen algebra and problem-solving foundations; students joining later can focus on their current topics and assessments.
What makes DeepThink different for St. Gabriel's Secondary School students?
Small classes, teaching matched to the student's actual Mathematics course, and practice that develops clear working as well as correct answers. Parents are kept informed about progress and areas needing more practice.
How many students are in each class?
Four, at most. Students are grouped by learning pace, not just by year level, so each lesson moves at the speed of the students actually in it. When no class matches a child’s pace, we open a new one. In a class that size, every child answers questions, gets their working checked, and gets help the moment they need it.
Can families start with a trial class first?
Yes. A trial class helps you see whether our teaching pace and approach suit your child. Trials in existing classes are free. If no class suits your timing, we can arrange a 1-to-1 trial at another time for $30.
Ready to start?
Try a free trial class and see how DeepThink works
Experience our teaching approach and find a class that suits your child’s learning needs.
We’ll help match your child to a suitable class.