HSC Maths Ext 1 study plan
HSC Maths Ext 1 · Give each week a clear focus.
8 weeks · About 6 hours per week
Functions & Calculus
Sketch and classify the standard function families (polynomial, rational, exponential, logarithmic, absolute value) and state their domains and ranges from memory
Solve inequalities involving absolute values and rational functions, writing solution sets in interval notation
Apply the quotient, product and chain rules to differentiate composite expressions without referring to notes
Compute equations of tangents and normals to curves at given points and find stationary points using the first derivative
Your checkpoint
A one-page formula and technique sheet plus 15 fully worked differentiation and function-sketching problems, self-marked with errors annotated
Functions & Proof
Prove statements by mathematical induction, including divisibility and inequality cases, with correct base case and inductive step structure
Distinguish and construct direct proofs, proofs by contradiction and counterexamples
Perform polynomial division and use the remainder and factor theorems to solve parameter problems
Graph inverse functions and composite functions, stating restricted domains explicitly
Your checkpoint
Five complete induction proofs written under timed conditions (12 minutes each) plus a written list of common structural mistakes you made
Trigonometric Functions & Calculus
Derive and apply the three Pythagorean identities and the compound-angle and double-angle formulas
Solve trigonometric equations over a stated domain, expressing all general solutions correctly
Differentiate and integrate trigonometric functions, including expressions requiring substitution or reverse chain rule
Sketch trigonometric graphs with correct amplitude, period and phase shift, and identify their symmetries
Your checkpoint
A 20-question mixed trigonometry and calculus mini-test completed in 45 minutes, marked with a topic-by-topic accuracy tally
Calculus & Combinatorics
Evaluate definite integrals using substitution and identify when a change of limits is required
Find areas between curves and volumes of solids of revolution, setting up the integral before computing
Apply the product, sum and pigeonhole principles to counting problems
Compute permutations and combinations and solve arrangement problems with restrictions
Your checkpoint
A timed 50-minute practice paper covering integration applications and combinatorics, scored and reviewed against a written error log
Combinatorics & Vectors
Expand binomial expressions and find general terms, coefficients and specific powers
Solve probability problems involving binomial coefficients and counting arguments
Perform vector addition, scalar multiplication and dot product in two and three dimensions
Use vectors to prove geometric results such as collinearity and perpendicularity
Your checkpoint
A written proof portfolio of six vector geometry proofs and six binomial expansion problems, each with a one-line justification of method choice
Vectors & Statistical Analysis
Resolve vectors into components and solve force and displacement problems using vector methods
Compute and interpret the mean, median, mode, variance and standard deviation of a data set
Standardise values using z-scores and calculate probabilities from the normal distribution
Distinguish discrete from continuous random variables and compute expected value
Your checkpoint
A one-page statistical summary template plus 12 mixed vector and statistics problems solved with all working shown
Trigonometric Functions & Proof & Statistical Analysis
Re-derive trigonometric identities from scratch to confirm retention
Write a contradiction proof and an induction proof under exam timing without notes
Interpret correlation and regression output and describe the strength and direction of a relationship
Identify and correct your three most frequent errors from earlier weeks
Your checkpoint
A corrected error log showing before-and-after solutions for your ten weakest question types
Functions & Trigonometric Functions & Calculus & Combinatorics & Proof & Vectors & Statistical Analysis
Complete two full-length timed papers under exam conditions with no reference material
Allocate time across sections deliberately and review flagged questions
Classify every error as conceptual, procedural or careless and target the largest category
Your checkpoint
Two completed timed papers with a scored summary sheet and a final one-page revision sheet of formulas and proof templates
Milestones
Week 2: Can complete an induction proof and a polynomial remainder problem unaided in under 15 minutes each with full marks
Week 4: Scores at least 70 percent on the timed integration and combinatorics paper, with no repeated error type from week 1
Week 6: Correctly answers at least 8 of 10 mixed vector and statistics questions, including one full geometric proof
Week 8: Scores at least 75 percent on both full-length timed papers and has a completed error log and revision sheet