NCEA Level 1
Maths46 lessons
Number and algebra · AS 91947
Expanding, index laws and algebraic fractionsVideoFactorising quadratics, HCF and difference of squaresVideoAlgebraic proof: even, odd and consecutive numbersVideoSolving linear equations and inequationsVideoSolving quadratic equations by factorisingVideoSimultaneous equations: elimination and substitutionVideoStraight-line graphs, gradient and rate of changeVideoOptimal solutions: break-even and maximum areaVideoExpressions: 7 exam questions solved step by stepVideoFactorising: 7 exam questions solved step by stepVideoGeneralising: 7 exam questions solved step by stepVideoEquations and inequations: 7 exam questions solvedVideoQuadratic equations: 7 exam questions solved step by stepVideoSimultaneous equations: 7 exam questions solved step by stepVideoStraight-line graphs: 7 exam questions solved step by stepVideoOptimal solutions: 7 exam questions solved step by stepVideo
Measurement and geometry · AS 91947
Pythagoras' theorem in 2D and 3D explainedVideoTrigonometry: SOH CAH TOA, elevation and 3DVideoSimilar shapes: scale factors, area and volumeVideoSurface area of pyramids, cones and spheresVideoVolume of cones, pyramids, spheres and composite solidsVideoPythagoras: 7 exam questions solved step by stepVideoTrigonometry: 7 exam questions solved step by stepVideoSimilar shapes: 7 exam questions solved step by stepVideoSurface area: 7 exam questions solved step by stepVideoVolume: 7 exam questions solved step by stepVideo
Statistics · AS 91944
Statistical enquiry: PPDAC and investigative questionsVideoPlanning data collection and sources of variationVideoComparing groups: box plots, shift and overlapVideoScatter plots: describing a relationship between two variablesVideoWriting a statistics conclusion: Achieved to ExcellenceVideoStatistical enquiry: 7 questions solved step by stepVideoComparing groups: 6 questions solved step by stepVideoScatter plots: 7 questions solved step by stepVideo
Mathematical methods · AS 91945
Number in context · AS 91946
Statistics · AS 91946
Time series graphs: trend, seasonal pattern and unusual pointsVideoInterpreting box plots and scatter plots in the 91946 examVideoIs this information any good? Bias, misleading graphs and riskVideoTime series: 7 exam questions solved step by stepVideoInterpreting displays: 7 exam questions solved step by stepVideoEvaluating information: 7 exam questions solved step by stepVideo