MATHEMATICS-I · 2020
Mathematics I
Official National Center for University Entrance Examinations examination materials and examiner commentary for Mathematics I (2020). Refer to the board portal for the latest published reports.
Cohort performance
Session statistics from official examination reports
No data available in official reports
Key examiner messages
Top priorities from the principal examiner before you revise
No data available in official reports
Question difficulty map
How candidates performed on each question in this series
No data available in official reports
Assessment objectives
Skill and AO weighting from official examiner commentary
No data available in official reports
Method marks watchlist
Where working, steps, or method marks were commonly lost
No data available in official reports
Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
Quadratics: Using discriminant conclusions without considering tangency or domain restrictions. — After calculating D, check whether inte…
Inequalities: Forgetting to reverse the inequality sign when multiplying or dividing by a negative. — Mark negative operations with an ar…
Trigonometry: Using the wrong side for sine, cosine or tangent. — Label sides relative to the given angle, not relative to the drawing or…
Data: Assuming a stronger correlation because the slope is steep. — Correlation depends on tightness around a line, not just slope.
Rounding: Rounding intermediate values and missing an exact answer. — Keep radicals and fractions exact until the last step.
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
No data available in official reports
Grade & admission context
How marks relate to grade thresholds and entry standards
No data available in official reports
Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
No data available in official reports
Time traps
Sections where candidates spent disproportionate time relative to marks
No data available in official reports
Syllabus traceability
Topics linked to questions and mark weighting in this session
No data available in official reports
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Quadratic functions
Numbers, expressions and equations
Figures, measurement and trigonometric ratios
Data analysis
Difficulty trend
How session difficulty has shifted across recent years
Paper comparison
Marks and duration breakdown across papers in this session
No data available in official reports
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
No data available in official reports
Self-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Pitfall
Quadratics: Using discriminant conclusions without considering tangency or domain restrictions. — After calculating D, check whether inte…
- 2Pitfall
Inequalities: Forgetting to reverse the inequality sign when multiplying or dividing by a negative. — Mark negative operations with an ar…
- 3Pitfall
Trigonometry: Using the wrong side for sine, cosine or tangent. — Label sides relative to the given angle, not relative to the drawing or…
- 4Pitfall
Data: Assuming a stronger correlation because the slope is steep. — Correlation depends on tightness around a line, not just slope.
- 5Pitfall
Rounding: Rounding intermediate values and missing an exact answer. — Keep radicals and fractions exact until the last step.
Teacher briefing pack
One-page session summary for tutors and classroom review
2020 2020
Mathematics I
Official National Center for University Entrance Examinations examination materials and examiner commentary for Mathematics I (2020). Refer to the board portal for the latest published reports.
Quadratics: Using discriminant conclusions without considering tangency or domain restrictions. — After calculating D, check whether inte…
Inequalities: Forgetting to reverse the inequality sign when multiplying or dividing by a negative. — Mark negative operations with an ar…
Revui has indexed this report from the official exam board. Open the original examiner report for full comments on candidates' performance. Curated charts and pitfalls for this series are coming soon.
View official report