Class size
Small group
Stream-specific
Secondary
Math Tuition for St. Gabriel's Secondary School Students
Secondary Math classes grouped by stream, each covering the exact syllabus and exam format for that level.
St. Gabriel's Secondary School (SGSS), often known as "St. The school was founded in 1953. DeepThink's Secondary Math programme supports St. Gabriel's Secondary School students with stream-specific classes for G1, G2, and G3.
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
How DeepThink supports St. Gabriel's Secondary School students
G1, G2, and G3 students are in separate classes, each covering the content and exam format for that stream
O-Level, N-Level, and SEC exam preparation built in from S3, matched to the stream your child is sitting
E-Math and A-Math taught in separate classes from S3 onwards
S1 to S5 coverage so your child can stay with DeepThink for their entire secondary journey without switching centres
The programme
What your child gets at DeepThink
Secondary Math is not one-size-fits-all. A G1 student preparing for the SEC exam needs completely different content from a G3 student heading for A-Math. We keep streams in separate classes so every session is relevant.
Weekly duration
1.5 hours
Levels covered
S1 – S5
Streams
G1, G2, G3 (separate classes)
Frequently asked questions
Clear answers for parents
Does my child's stream affect which class they join at DeepThink?
Yes. G1, G2, and G3 students each have their own class, so every lesson matches the exact syllabus and exam format your child is sitting.
My child is doing okay in S1/S2 but I'm worried about the jump to S3. Is it too early to start?
S3 is where most students hit a wall — the syllabus gets significantly harder, A-Math is new, and SEC exam (or O-Level for the current Sec 4 cohort) prep begins. Students who build strong foundations in S1–S2 handle that jump far better. Starting early is the highest-leverage move a parent can make.
When is the right time for a secondary student to start tuition?
S1 is ideal — algebra gaps from the start of secondary compound quickly and are harder to fix later. That said, students who join in S3 or S4 can still benefit significantly from targeted exam preparation.
What makes DeepThink different for secondary students?
Stream-specific classes. Every lesson, worked example, and past-year paper is matched to your child's stream.
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.
Ready to start?
Try a free trial class and see how DeepThink works
Experience our teaching approach firsthand. No commitment required.
Free trial • No credit card required