International Mathematics Exam Strategist
Winson Siu
Co-founder of Vault of Excellence — 18,000+ hours of 1-on-1 maths tutoring
Teaches
IB Diploma Maths · A-Level / IAL · IGCSE · Math IA
Private tutoring
HK$1,200Booking · coming soon
01 ·Teaching Features
Focuses exclusively on premium online math tutoring, fully integrating the iPad, Apple Pencil, and GoodNotes to create the ideal, high-efficiency learning experience for the modern student. With real-time class interaction, easily accessible notes for review, and in-depth training on past papers, students can achieve rapid breakthroughs and secure top grades in a flexible yet highly professional environment.
02 ·Tutor Background
- Over 10 years of private tutoring experience. Teaching full-time from 2018 to 2025, having taught over 250 students one-on-one with total teaching hours exceeding 18,000.
- Possesses a deep understanding of the questioning styles, patterns, and strategies of various public exams. Specializes in high-school mathematics curricula including IBDP, A-Level, and IGCSE.
- Formerly served as a teaching assistant for the renowned modern-education tutor W.L. Lee, teaching HKALE Pure Math. Mastered advanced mathematical problem-solving techniques, graded over 1,500 exam papers, and gained profound insight into common student mistakes.
03 ·Public Exam Results
HKALE Pure Math
A
Top 4.8%
HKCEE Additional Math
A
Top 6.0%
HKCEE Math
A
Top 3.1%
HKDSE Math (M1)
5**
Top 2.9%
05 ·1-1 Private Lesson, Times Square Causeway Bay
06 ·Courses I Teach
IB Diploma Programme
Analysis and Approaches HLAnalysis and Approaches SLApplications and Interpretation HLApplications and Interpretation SLInternal Assessment (IA)Middle Years Programme (MYP)
6 courses
A-Level / IAL
Edexcel IAL Further Math YFM01Edexcel IAL Math YMA01Edexcel GCE AL Further Math 9FM0Edexcel GCE AL Math 9MA0Cambridge CAIE Further Math 9231Cambridge CAIE Math 9709AQA AL Further Math 7367AQA AL Math 7357OCR AL Math H240
9 courses
IGCSE
Cambridge Additional Math 0606Cambridge International Math 0607Cambridge Math 0580Edexcel Further Pure Math 4PM1Edexcel Math 4PM0
5 courses
07 ·IBDP Teaching Achievements
- Mastery of the exam formats and questioning techniques across all four IBDP Math courses (AA HL, AI HL, AA SL, AI SL), accurately grasping grading criteria and high-scoring strategies.
- Systematically organized nearly 300 HL and SL past papers from 2008 to 2025, carefully categorizing them by topic and difficulty level. This helps students thoroughly understand exam trends and effectively address their weaknesses and oversights.
- Leveraging years of premium teaching experience, over 40% of students have achieved a perfect score of 7 in their final international exams.
08 ·Math IA
- Collaborates with a PhD in Pure Mathematics from a top UK university to tailor IA topics to students' interests, guiding the writing with PhD-level perspective to ensure depth, creativity, and personal engagement.
- Between 2020 and 2025, assisted over 80 students in completing high-quality Math IAs, with many works used as teaching examples by school teachers.
- Representative works: "Dividing a Pizza into Three Equal Amounts of Pieces in Two Cuts" (1st in class), "Smooth Numbers" (1st in class), and "Mathematics Behind Spirographs".
09 ·IBDP Success Cases
- 2025: Helped two AA HL students jump from a Grade 6 to a Grade 7 in just 3 months — scoring 44/45 (admitted to HKU Medicine, MBBS) and 43/45 (admitted to the University of Cambridge, LLB) respectively.
- 2022: Helped an AA HL student jump from a predicted Grade 3 to a final Grade 6 in just 3 months.
- 2023: Helped an AA SL student jump from a predicted Grade 3 to a final Grade 7 in just 1.5 months.
10 ·Where My IBDP Students Study
Yew Chung International SchoolSt. Stephen's CollegePLK Choi Kai Yau SchoolPLK Ngan Po Ling CollegeDiocesan Boys' SchoolSt. Paul's Co-educational CollegeLi Po Chun United World CollegeKiangsu-Chekiang CollegeG.T. (Ellen Yeung) College
9 schools
German Swiss International SchoolThe ISF AcademyESF King George V SchoolESF Sha Tin CollegeESF Island SchoolESF West Island SchoolESF South Island SchoolESF Discovery CollegeESF Renaissance College
9 schools
Malvern CollegeVictoria Shanghai AcademyChinese International SchoolCanadian International SchoolSingapore International SchoolFrench International SchoolAustralian International SchoolAmerican SchoolInternational College
9 schools
11 ·A-Level Teaching Achievements
- Mastery of the syllabi and question types across multiple exam boards — Edexcel, Cambridge, AQA, and OCR — accurately grasping exam trends and grading standards.
- Systematically organized nearly 300 past papers from 2008 to 2025, finely categorizing them to help students target their weaknesses and develop efficient strategies to secure an A*.
- Leveraging years of premium teaching experience, 100% of students have achieved A* grades in both IAL Math and IAL Further Math.
12 ·A-Level Success Case
- 2022: Helped a private candidate achieve A*s in both IAL Math and IAL Further Math, gaining admission to the Department of Economics at the University of Cambridge.
13 ·Where My A-Level Students Study
Local Schools
Private CandidatesDiocesan Girls' SchoolWong Kam Fai Secondary SchoolKorean International School
Chinese Schools
深圳國際交流書院上海光華啟迪學校廣東碧桂園學校
Overseas Schools
Roedean SchoolQueen Ethelburga's CollegeChigwell SchoolBromsgrove SchoolACG Parnell College
14 ·IGCSE Teaching Achievements
- Mastery of the exam formats and questioning techniques of the two mainstream exam boards — Cambridge and Edexcel — with deep familiarity with grading criteria and high-scoring strategies.
- Specializes in Cambridge International Math (0607), Additional Math (0606), and Math (0580), as well as Edexcel Math and Edexcel Further Math, accumulating rich practical experience over the years.
- Systematically organized nearly 240 past papers from 2014 to 2025, finely categorizing them by module and topic to help students precisely target weaknesses and solidify their foundations.
- Leveraging years of premium teaching experience, over 75% of students have achieved A or A* grades in the 0607 and 0606 exams.
15 ·IGCSE Success Cases
- 2024: A 0580 student jumped from a school grade C to a final A* in just 2 months.
- 2023: A 0607 student went from a school grade F to a final A in 1 year.
- 2018: A 0606 student jumped from a school grade B to a final A* in just 2 months.
16 ·Where My IGCSE Students Study
Cambridge IGCSE
Yew Chung International SchoolGerman Swiss International SchoolPLK Choi Kai Yau SchoolESF Sha Tin CollegeSingapore International SchoolFrench International SchoolWong Kam Fai Secondary School
7 schools
Edexcel IGCSE
St. Paul's Convent SchoolHarrow International SchoolESF King George V SchoolKiangsu-Chekiang College
4 schools
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