Secondary

Math Tuition for Crescent Girls' School Students

Secondary Math classes grouped by stream, each covering the exact syllabus and exam format for that level.

Crescent Girls’ School (CGS) traces its roots to 1955, when it opened as Alexandra Estate Secondary School in a modest corner of Queenstown. DeepThink's Secondary Math programme supports Crescent Girls' School students with stream-specific classes for G1, G2, and G3.

About Crescent Girls' School

Crescent Girls’ School (CGS) traces its roots to 1955, when it opened as Alexandra Estate Secondary School in a modest corner of Queenstown. By 1956, it transformed into an all-girls institution, adopting its current name as male students were reassigned, marking the beginning of its dedicated focus on female education.

How DeepThink supports Crescent Girls' 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 S4 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.

Class size

Small group

Stream-specific

Weekly duration

1.5 hours

Levels covered

S1 – S4

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

Crescent Girls' School (CGS) was established in 1955 as Alexandra Estate Secondary School in the Queenstown neighbourhood. The following year, it became an all-girls institution and took on its present name after male students were transferred to other schools. In 1996, the Ministry of Education (MOE) granted CGS autonomous status, giving it additional flexibility in designing programmes while still meeting national standards. The school operates as a government autonomous girls' school and holds Special Assistance Plan (SAP) designation, with a strong emphasis on bilingualism in English and Chinese.

The school motto, "Decus et Veritas" (Honour and Truth), reflects its focus on integrity, perseverance, and intellectual growth. Students at CGS — known as Crescentians — are guided towards becoming confident learners, engaged global citizens, and community-minded leaders. CGS was among the original FutureSchools@Singapore cohort, integrating technology into teaching and learning from an early stage. The school also offers the Music Elective Programme (MEP), which provides structured development in music alongside the regular academic curriculum.

Admission Process

Entry to CGS at Secondary 1 takes place through the PSLE posting exercise and the Direct School Admission (DSA) scheme.

For the PSLE route, admission is based on Achievement Level (AL) scores, where lower totals reflect stronger performance. Based on the 2025 intake, the indicative cut-off points were AL 10 for Posting Group 3 (non-affiliated students) and AL 23 for Posting Group 2. Students from affiliated primary schools such as Nan Hua Primary receive priority consideration, which may result in adjusted thresholds.

The DSA pathway is open to students with strengths in areas such as sports, performing arts, leadership, and academic pursuits. For the 2025 cycle, applications were accepted from 7 May to 3 June through the MOE DSA portal. Talent areas include badminton, choir, and innovation-related clubs, among others.

CGS follows the O-Level academic track and does not offer an Integrated Programme. The school participates in Full Subject-Based Banding (Full SBB), which allows students from Secondary 2 onwards to take selected subjects at different levels based on their individual strengths.

Parents considering CGS may find it helpful to attend open house sessions (typically held in May to June and again in November after PSLE results), review MOE resources on Full SBB, and connect with current families through school forums or alumni networks.

Curriculum and Academic Programme

CGS delivers an O-Level curriculum with core subjects including English Language, Elementary Mathematics, Additional Mathematics, Biology, Chemistry, Physics, and Humanities (Social Studies paired with Geography, History, or Literature). As an SAP school, Higher Chinese is available, alongside elective subjects such as Art and Computing. Full SBB allows students to customise their subject combinations to suit their abilities.

The school has received the MOE School Excellence Award in recognition of its teaching and programme quality. In recent O-Level cohorts (2023–2024), a large proportion of students achieved strong results in Mathematics and the Sciences. The Music Elective Programme has consistently produced ensembles recognised at the Singapore Youth Festival, and CGS graduates have gone on to pursue careers in fields ranging from law to technology.

Specialised enrichment includes STEM workshops and bilingual leadership modules that develop analytical and communication skills alongside regular coursework. For students seeking additional support in Mathematics — whether for O-Level preparation or to build a stronger foundation — DeepThink is a math tuition centre that offers structured programmes aligned to the secondary syllabus.

Facilities and Co-Curricular Activities

The CGS campus features smart classrooms equipped with interactive displays, well-stocked library facilities, dedicated science and computer laboratories, and a performing arts theaterette. Sporting infrastructure includes netball and hockey fields, and there is a conservatory space used for music and ensemble rehearsals. Facility upgrades over the years have expanded the school's digital learning environments in line with its FutureSchool heritage.

Co-Curricular Activities (CCAs) are compulsory for all students and span four categories:

Sports: Badminton, Canoeing, Hockey, Netball, Softball, Track and Field.

Uniformed Groups: Girl Guides, National Cadet Corps (Land), Red Cross Youth.

Performing Arts: Angklung/Kulintang Ensemble, Choir, Chinese Dance, Concert Band, English Drama.

Clubs and Societies: Infocomm Technology, Entrepreneurship, Chess, Photography, Leadership.

CCAs at CGS contribute to character development, teamwork, and leadership skills. Active CCA participation is also relevant for students considering the DSA route into the school.

Student Life and School Culture

School life at CGS is shaped by core values of courage, empathy, and a commitment to personal growth. Class sizes are approximately 40 students, and the teacher-to-student ratio of around 1:15 supports closer attention to individual progress. The school runs pastoral care and counselling programmes to maintain a supportive and inclusive environment, alongside anti-bullying measures in line with MOE guidelines.

Values in Action (VIA) projects are part of every student's experience, encouraging community engagement and social responsibility. Peer mentoring programmes and wellness workshops give students opportunities to develop leadership and self-management skills. For families preparing for the transition from primary school, orientation camps and structured study routines can help students settle into secondary school life at CGS.

Frequently Asked Questions about Crescent Girls' School

CGS is a government autonomous girls' school with SAP status, recognised for its Music Elective Programme and broad range of co-curricular activities. The school has received the MOE School Excellence Award and places emphasis on both academic performance and character development. Whether it is the right fit depends on each student's learning style and interests — attending an open house is a good way to find out more.

No. CGS enrols only female students and operates as a single-session girls' school throughout the secondary years.

The Ministry of Education does not publish official rankings of secondary schools. CGS is recognised as an autonomous school with strong academic and co-curricular programmes, but parents looking to compare schools should consider PSLE cut-off points, programme offerings, and school culture rather than informal rankings.

Based on the 2024 intake, the indicative cut-off points for non-affiliated students were AL 7–10 for Posting Group 3 and AL 21–23 for Posting Group 2. These figures reflect the score of the last student admitted in that cycle and may change from year to year.

The school offers O-Level subjects including English Language, Mathematics, Additional Mathematics, Biology, Chemistry, Physics, Science, Chinese Language, Malay Language, Tamil Language, Higher Chinese/Malay/Tamil, Geography, History, Literature in English, Humanities combinations, Art, Music, Higher Music, Design and Technology, Food and Consumer Education, and Physical Education. Full Subject-Based Banding provides flexibility in subject-level placement.

Sports CCAs include Badminton, Canoeing, Hockey, Netball, Softball, and Track and Field. Uniformed groups are Girl Guides, Red Cross Youth, and National Cadet Corps (Land). Performing arts options include Angklung/Kulintang Ensemble, Choir, Chinese Dance, English Drama, and Concert Band. Clubs and societies cover Audio Visual Aid, International Chess, Photography, Infocomm Technology, Entrepreneurship, and Leadership. CCA participation is compulsory for all secondary students.

Yes. CGS has held autonomous status since 1996, which gives it additional flexibility to design enhanced programmes such as the Music Elective Programme while continuing to follow the national O-Level curriculum.

No. CGS follows the O-Level pathway. After completing their O-Levels, students typically proceed to junior colleges, polytechnics, or other post-secondary institutions.

As a government autonomous school, CGS charges standard fees for Singapore citizens, with additional miscellaneous fees. Exact amounts depend on nationality and the current year. MOE financial assistance schemes are available for eligible families — details can be found on the MOE website.

The school is situated at 357 Tanglin Road, Singapore 247961, in the Bukit Merah area.

The school can be reached by phone at 6475 8711 or by email at [email protected]. Further information is available on the school's official website.

CGS offers both Elementary and Additional Mathematics at the O-Level, and the step up from primary school mathematics can be significant. Building strong foundations in algebra and problem-solving before or during Secondary 1 is helpful. DeepThink is a math tuition centre that provides structured programmes covering the O-Level Mathematics syllabus, which some CGS families have found useful for supplementary support.

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