HKDSE Maths (Core) study plan
HKDSE Maths (Core) · Give each week a clear focus.
8 weeks · About 6 hours per week
Compulsory Part (Mathematics)
Classify every question in a 40-question mixed set by Paper 1 (long-form, working required) versus Paper 2 (multiple choice) format and by topic, then rank the topics by how many marks you lost on a cold diagnostic attempt
Solve 25 quadratic equations using factorisation, completing the square and the quadratic formula, and state for each which method was fastest and why
Derive the discriminant condition for real, repeated and no real roots, then use it to answer 10 'find the range of k' style questions without solving the equation
Sketch 8 quadratic graphs from completed-square form, labelling the vertex, axis of symmetry and y-intercept, and connect each feature to the algebraic form
Your checkpoint
A one-page diagnostic error log listing your 10 weakest topics with the mark loss and the exact step where each error occurred
Compulsory Part (Mathematics)
Apply all three index laws and the laws of logarithms to simplify 20 expressions, including changing base and solving a^x = b by taking logarithms
Solve 15 simultaneous equations, mixing one linear plus one quadratic with two linear, and verify each answer by substitution
Formulate and solve 10 word problems by translating them into equations (age, rate, mixture and consecutive-integer types) and define the variable explicitly before solving
Prove 5 algebraic identities using the difference of two squares and perfect-square expansions, writing each line as a logical step rather than a jump
Your checkpoint
A timed 45-minute set of 12 algebra questions scored and corrected, with every wrong answer reworked in full
Compulsory Part (Mathematics)
State and apply the remainder theorem and factor theorem to find unknown coefficients in 12 polynomial questions
Perform long division and synthetic division of polynomials and express results in the form dividend = divisor x quotient + remainder
Use the factor theorem to factorise cubics completely and hence solve cubic equations
Handle variation problems (direct, inverse, joint, partial) by first writing the proportionality statement, then substituting to find the constant
Your checkpoint
A formula-and-method card covering indices, logarithms, polynomials and variation, written from memory then checked against notes
Compulsory Part (Mathematics)
Solve 15 equations involving absolute values, rational expressions and surds, and identify and reject extraneous roots
Apply the midpoint, distance, slope and section formula to 12 coordinate geometry problems, including finding a locus equation
Find the equation of a straight line in general, slope-intercept and point-slope forms and convert between them fluently
Solve linear inequalities in one unknown and represent the solution on a number line, including compound 'and/or' cases
Your checkpoint
A full mock Paper 2 (45 multiple-choice questions) attempted under 75 minutes, with a topic-by-topic accuracy table
Compulsory Part (Mathematics)
State and apply the sine, cosine and area formulae for triangles, and use the cosine formula to find an unknown side or angle in 12 problems
Apply the sine and cosine rules to 3D figures by identifying the correct planar triangle and drawing the diagram before calculating
Use bearings and angles of elevation/depression in 8 multi-step problems, sketching the north line and marking all given angles
Solve trigonometric equations for a given range and state the general solution pattern
Your checkpoint
A set of 10 trigonometry and mensuration questions solved with full diagrams, including at least 3 three-dimensional problems
Compulsory Part (Mathematics)
Compute arc length, sector area, volume and surface area of prisms, pyramids, cylinders, cones and spheres, and solve similar-solid ratio problems
Apply the properties of circles (angle at centre, angle in semicircle, cyclic quadrilateral, tangent-radius) to prove 8 geometric statements
Write two-column or paragraph proofs for congruent and similar triangles, justifying every statement with a named reason
Solve 10 mensuration word problems involving composite solids and rate of flow
Your checkpoint
A geometry proof portfolio of 8 fully reasoned proofs, each with a named theorem cited for every step
Compulsory Part (Mathematics)
Compute mean, median, mode, range, interquartile range and standard deviation from raw data and from grouped frequency tables
Construct and interpret box-and-whisker plots, histograms and cumulative frequency curves, and read quartiles and percentiles from them
Apply basic probability rules including the addition rule, independent events and conditional probability to 15 problems
Distinguish permutation from combination and solve 10 arrangement problems with repetition and restriction cases
Your checkpoint
A statistics and probability summary sheet with 6 worked examples of each calculation type, plus a 30-question timed drill scored
Compulsory Part (Mathematics)
Complete a full Paper 1 under exam conditions in 135 minutes and a full Paper 2 in 75 minutes back-to-back on separate days
Mark both papers against a marking scheme and classify every lost mark as knowledge gap, method error, careless slip or time pressure
Re-drill the top 5 recurring error types from weeks 1 to 7 with 10 targeted questions each
Build a final one-page 'exam-day sheet' of formulas, common traps and timing checkpoints, then reproduce it from memory
Your checkpoint
A completed error analysis report for both mock papers with a prioritised revision list and a verified exam-day formula sheet
Milestones
Week 2: Score at least 70% on a self-marked 12-question algebra set within 45 minutes, with all working shown
Week 4: Score at least 55% on a full Paper 2 mock (45 MC questions) in 75 minutes, and identify at least 3 topics where accuracy is below 50%
Week 6: Produce 8 geometry proofs where every step carries a named reason, and score at least 60% on a 10-question mensuration set
Week 8: Achieve at least 60% on Paper 1 and 65% on Paper 2 in full timed mocks, with fewer than 5 marks lost to careless slips