Explore the skills · QCAA

Mathematical Methods

QCAA External Exam Revision · Units 3 & 4

Explore the subject and its skills. Full lessons, examples and practice require subject access. Accounts and purchasing are not open yet.

Find a skill

    Differentiation of exponential and logarithmic functions

    • The exponential function eˣ and its graphRevision skill
    • Differentiate exponential and composite exponential functionsRevision skill
    • Natural logarithms, inverse relationships and graph featuresRevision skill
    • Solve exponential and logarithmic equations with base eRevision skill
    • Differentiate logarithmic and composite logarithmic functionsRevision skill
    • Model with exponential and logarithmic derivativesRevision skill

    Differentiation of trigonometric functions and differentiation rules

    • Differentiate sine and cosine functionsRevision skill
    • Differentiate composite trigonometric functionsRevision skill
    • Apply the chain rule to mixed functionsRevision skill
    • Apply product and quotient rules to mixed functionsRevision skill
    • Select and combine differentiation rulesRevision skill

    Further applications of differentiation

    • Interpret second derivatives and accelerationRevision skill
    • Determine concavity and points of inflectionRevision skill
    • Use the second derivative testRevision skill
    • Sketch functions using first and second derivativesRevision skill
    • Solve optimisation problems with a given objective functionRevision skill
    • Develop and optimise mathematical modelsRevision skill

    Introduction to integration

    • Antidifferentiate standard functionsRevision skill
    • Use linearity of indefinite integralsRevision skill
    • Antidifferentiate linear composite functionsRevision skill
    • Determine functions from derivatives and initial conditionsRevision skill
    • Determine displacement from velocityRevision skill
    • Determine velocity and displacement from accelerationRevision skill
    • Model and solve with indefinite integralsRevision skill

    Discrete random variables

    • Construct and interpret discrete probability functionsRevision skill
    • Estimate discrete probabilities from relative frequenciesRevision skill
    • Calculate and interpret expected valueRevision skill
    • Calculate discrete variance and standard deviationRevision skill
    • Recognise and use Bernoulli distributionsRevision skill
    • Identify valid binomial modelsRevision skill
    • Calculate exact and cumulative binomial probabilitiesRevision skill
    • Use binomial mean, variance and modellingRevision skill

    Further integration

    • Estimate area with sums and interpret definite integralsRevision skill
    • Use the fundamental theorem of calculusRevision skill
    • Calculate area between a curve and the x-axisRevision skill
    • Calculate area between curvesRevision skill
    • Approximate definite integrals with the trapezoidal ruleRevision skill
    • Use definite integrals for total change and motionRevision skill

    Trigonometry

    • Use the sine rule including the ambiguous caseRevision skill
    • Use the cosine ruleRevision skill
    • Calculate triangle area using sineRevision skill
    • Model 2D and 3D contexts with trigonometryRevision skill

    Continuous random variables and the normal distribution

    • Estimate continuous probabilities from data and histogramsRevision skill
    • Use probability density and cumulative distribution functionsRevision skill
    • Calculate continuous expected valueRevision skill
    • Calculate continuous variance and standard deviationRevision skill
    • Standardise normal values and compare samplesRevision skill
    • Recognise normal-distribution models and featuresRevision skill
    • Calculate normal probabilities and quantilesRevision skill
    • Model and solve with normal distributionsRevision skill

    Sampling and proportions

    • Identify random sampling procedures and biasRevision skill
    • Interpret simulated sampling distributionsRevision skill
    • Use the mean and standard deviation of sample proportionsRevision skill
    • Use normal approximations for sample proportionsRevision skill

    Interval estimates for proportions

    • Interpret interval estimates for a population proportionRevision skill
    • Calculate confidence intervals for proportionsRevision skill
    • Calculate and interpret margin of errorRevision skill
    • Relate confidence level, sample size and margin of errorRevision skill
    • Interpret confidence intervals across repeated samplesRevision skill
    Explore another subject →