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9th Grade · Math · Australian Curriculum
Algebraic Expressions: Expanding
Track 1 of 11 · 6 lessons
6 lessons
Expand algebraic expressions including binomial products, perfect squares, and the difference of two squares.
Featured Diagrams
- 1Collecting Like Terms with Variables and ExponentsUp nextStart
- 2Multiplying a Monomial by a BinomialPremiumNot started yet
- 3Multiplying a Monomial by a PolynomialNot started yet
- 4Expanding Binomial Products (a+b)(c+d)Not started yet
- 5Expanding Perfect Squares: (a+b)² and (a-b)²Not started yet
- 6Expanding the Difference of Two Squares: (a+b)(a-b)Not started yet
Algebraic Expressions: Factorising
Track 2 of 11 · 6 lessons
6 lessons
Factorise algebraic expressions by taking out common factors, factorising monic quadratics and special forms, and apply these skills to simplify algebraic fractions.
Featured Diagrams
- 1Factorising by Taking Out a Common FactorUp nextStart
- 2Factorising Monic Quadratics: x² + bx + cPremiumNot started yet
- 3Factorising the Difference of Two SquaresNot started yet
- 4Factorising Perfect Square TrinomialsNot started yet
- 5Mixed Expanding and Factorising PracticeNot started yet
- 6Simplifying Algebraic Fractions by FactorisingNot started yet
Analysing Survey Reports in Digital Media
Track 3 of 11 · 5 lessons
5 lessons
Analyse reports of surveys in digital media and elsewhere for information on how data was obtained to estimate population means and medians.
Featured Diagrams
- 1Identifying Data Sources in Media ReportsUp nextStart
- 2Evaluating Survey Methodology in ReportsPremiumNot started yet
- 3Estimating Population Means from Survey DataNot started yet
- 4Estimating Population Medians from Survey DataNot started yet
- 5Asking Critical Questions About Survey ClaimsNot started yet
Angles, Similarity, and Scale
Track 4 of 11 · 5 lessons
5 lessons
Apply angle properties of parallel lines and polygons, and use similarity and scale to find unknown angles and side lengths in geometric problems.
- 1Angle Properties of Parallel Lines and TransversalsUp nextStart
- 2Interior and Exterior Angles of PolygonsPremiumNot started yet
- 3Identifying and Using Similar TrianglesNot started yet
- 4Using Similarity in Right Triangles: Geometric MeanNot started yet
- 5Using Scale in Geometric ProblemsNot started yet
Chance Experiments and Simulations
Track 5 of 11 · 5 lessons
5 lessons
Design and conduct repeated chance experiments and simulations using digital tools to compare probabilities of simple events to related compound events.
- 1Designing Repeated Chance ExperimentsUp nextStart
- 2Simulating Simple Events with Digital ToolsPremiumNot started yet
- 3Comparing Simple and Compound Event ProbabilitiesNot started yet
- 4Running Simulations to Estimate ProbabilitiesNot started yet
- 5Describing and Reporting Simulation ResultsNot started yet
Choosing Appropriate Data Displays
Track 6 of 11 · 5 lessons
5 lessons
Choose appropriate forms of display or visualisation for a given type of data, justify selections and interpret displays in context.
Featured Diagrams
- 1Matching Data Types to Appropriate DisplaysUp nextStart
- 2Justifying Choices of Data DisplayPremiumNot started yet
- 3Creating and Interpreting HistogramsNot started yet
- 4Creating and Interpreting Scatter PlotsNot started yet
- 5Evaluating Misleading Data DisplaysNot started yet
Comparing Data Distributions
Track 7 of 11 · 7 lessons
7 lessons
Represent and compare distributions of multiple data sets, considering centre, spread, shape and the effect of outliers.
Featured Diagrams
- 1Comparing Data Sets with Different Shapes and OutliersUp nextStart
- 2Creating and Interpreting Back-to-Back Stem-and-Leaf PlotsPremiumNot started yet
- 3Creating and Interpreting Parallel Box PlotsNot started yet
- 4Comparing Centre, Spread and Shape of Data DistributionsNot started yet
- 5The Effect of Outliers on Measures of Centre and SpreadNot started yet
- 6Interpreting Comparative Displays and Drawing ConclusionsNot started yet
- 7Drawing Conclusions from Data Comparisons with EvidenceNot started yet
Compound Events and Probability
Track 8 of 11 · 7 lessons
7 lessons
List all outcomes for compound events with and without replacement, using lists, tree diagrams, tables or arrays, and assign probabilities to outcomes.
Featured Diagrams
- 1Listing All Outcomes for Compound EventsUp nextStart
- 2Compound Events With ReplacementPremiumNot started yet
- 3Compound Events Without ReplacementNot started yet
- 4Using Tree Diagrams to Calculate Compound ProbabilitiesNot started yet
- 5Using Two-Way Tables for Compound EventsNot started yet
- 6Using Arrays to Represent Compound EventsNot started yet
- 7Assigning Probabilities to Compound Event OutcomesNot started yet
Coordinate Geometry: Gradient, Midpoint and Distance
Track 9 of 11 · 8 lessons
8 lessons
Find the gradient of a line segment, the midpoint of an interval and the distance between two points on the Cartesian plane.
Featured Diagrams
- 1Finding the Gradient of a Line SegmentUp nextStart
- 2Gradient Formula from Two PointsPremiumNot started yet
- 3Types of Gradient: Positive, Negative, Zero and UndefinedNot started yet
- 4Finding the Midpoint of a Line SegmentNot started yet
- 5Midpoint Formula from Two PointsNot started yet
- 6Finding Distance Between Two Points Using PythagorasNot started yet
- 7Distance Formula Between Two PointsNot started yet
- 8Applying Gradient, Midpoint and Distance to ProblemsNot started yet
Direct Proportion, Rates, Ratio and Scale
Track 10 of 11 · 9 lessons
9 lessons
Use mathematical modelling to solve practical problems involving direct proportion, rates, ratio and scale, including financial contexts.
- 1Understanding Direct ProportionUp nextStart
- 2Solving Ratio Problems Using the Divider MethodPremiumNot started yet
- 3Solving Rate ProblemsNot started yet
- 4Speed, Distance and Time as RatesNot started yet
- 5Scale Drawings and ModelsNot started yet
- 6Best Buys and Unit PricingNot started yet
- 7Financial Problems with Ratio and ProportionNot started yet
- 8Modelling with Proportion in Real ContextsNot started yet
- 9Mixed Ratio, Rate and Proportion ProblemsNot started yet
Enlargement Transformations of Shapes and Objects
Track 11 of 11 · 6 lessons
6 lessons
Apply the enlargement transformation to shapes and objects, identifying what stays the same and what changes.
Featured Diagrams
- 1Understanding Enlargement as a TransformationUp nextStart
- 2Scale Factor in EnlargementPremiumNot started yet
- 3Enlargement on the Cartesian PlaneNot started yet
- 4What Stays the Same and What Changes in EnlargementNot started yet
- 5The Relationship Between Scale Factor and AreaNot started yet
- 6Using Dynamic Geometry Software for EnlargementNot started yet