Year 9 skills

Numbers

• Recurring decimals
• Level 1: Addition and subtraction of negative numbers
  Cheat sheet on the topic
• Level 2: Addition and subtraction of negative numbers
• Highest common factor and lowest common multiple
  Cheat sheet on the topic
• Prime numbers
  Cheat sheet on the topic
• Prime numbers within a range of numbers
  Cheat sheet on the topic
• Simplify fractions
  Cheat sheet on the topic
• Simplification of square and cubic roots
  Cheat sheet on the topic
• Prime factorisation
  Cheat sheet on the topic
• Identify rational and irrational numbers
• Evaluate expressions involving exponents
  Cheat sheet on the topic
• Level 1: Scientific notation
  Cheat sheet on the topic
• Level 2: Scientific notation
  Cheat sheet on the topic
• Evaluate percentages
  Cheat sheet on the topic
• Percentage change
  Cheat sheet on the topic
• Solving proportionality relationships
  Cheat sheet on the topic
• Finding values based on ratios
  Cheat sheet on the topic
• Challenge Level 1: Find integer solutions to linear equations
• Challenge Level 2: Find integer solutions to linear equations
• Challenge Level 1: Find the right arithmetic operations
• Challenge Level 2: Find the right arithmetic operations
• Challenge Level 3: Find the right arithmetic operations
• Challenge Count occurrence of digits
• Challenge Numeric sequences from geometric shapes
• Challenge Prime factor decomposition
  Cheat sheet on the topic
• Challenge Special numbers
  Cheat sheet on the topic
• Challenge Sudoku
  Cheat sheet on the topic
• Financial mathematics - Identify the best deal
  Cheat sheet on the topic
• Financial mathematics - Income and tax
  Cheat sheet on the topic
• Financial mathematics - Profit, loss, markup and discount
  Cheat sheet on the topic
• Financial mathematics - Simple interest
  Cheat sheet on the topic
• Financial mathematics - Compound interest
  Cheat sheet on the topic

Algebra

• Level 1: Simplification and expansion of algebraic expressions
• Level 2: Simplification and expansion of algebraic expressions
• Level 3: Simplification and expansion of algebraic expressions
  Cheat sheet on the topic
• Level 1: Simplification of rational algebraic expressions
  Cheat sheet on the topic
• Level 2: Simplification of rational algebraic expressions
  Cheat sheet on the topic
• Level 1: Addition and subtraction of rational expressions
  Cheat sheet on the topic
• Level 2: Addition and subtraction of rational expressions
  Cheat sheet on the topic
• Level 3: Addition and subtraction of rational expressions
• Level 1: Evaluate the exponent of an exponent
  Cheat sheet on the topic
• Level 2: Evaluate the exponent of an exponent
• Level 1: Integer indices
  Cheat sheet on the topic
• Level 2: Integer indices
  Cheat sheet on the topic
• Level 1: Coefficients and constants
• Level 2: Coefficients and constants
• Level 3: Coefficients and constants
• Factorise difference of squares
  Cheat sheet on the topic
• Factorisation
  Cheat sheet on the topic
• Symbolic substitution in algebraic expressions
  Cheat sheet on the topic
• Solve linear equations
  Cheat sheet on the topic
• Linear equations involving fractions
  Cheat sheet on the topic
• Level 1: Solve word equations
  Cheat sheet on the topic
• Solve symbolic linear equations
  Cheat sheet on the topic
• Solve inequalities in a single variable
  Cheat sheet on the topic
• Level 1: Solve the quadratic equation by factorisation
  Cheat sheet on the topic
• Level 2: Solve the quadratic equation by factorisation
• Solving simultaneous linear equations

Geometry

• Parallel and non-parallel lines
• Level 1: Find the unknown angle
• Level 2: Find the unknown angle
• Level 3: Find the unknown angle
• Level 1: Solve an equation to find the unknown angle in a triangle
• Level 2: Solve an equation to find the unknown angle in a triangle
• Congruent triangles
• Pythagoras theorem
• Calculate the properties of basic planar shapes
• Calculate the area of a triangle using Heron's formula
• Properties of polygons
• Deciding if a polygon is convex or concave
• Level 1: Calculate the properties of compound planar shapes
• Calculate the properties of basic three-dimensional shapes
• Calculate the area of a compound shape

Trigonometry

• Conversions between radians and degrees
• Evaluate trigonometric functions
• Calculations involving bearings

Coordinate geometry

• Identify coordinates of points on a plane
• The gradient of a line
• Decide if a point is on a line
• Midpoint of a line
• Level 1: Distance between points on a line and the midpoint
• Level 2: Distance between points on a line and the midpoint
• Coordinates of the midpoint of a line
• Coordinates of points on a line
• Linear intercepts
• Properties of the parabola

Set theory

• Basic set operations
• Venn diagrams

Probability

• Probability of simple events
• Probability of compound events
• Level 1: Probabilities in two-step experiments
• Level 2: Probabilities in two-step experiments
• Challenge Winning the tic-tac-toe

Statistics

• Summary and spread of data
• Understanding bar charts
• Understanding stem-and-leaf plots
• Stem-and-leaf plots of decimal data
• Skewness of the stem-and-leaf plot
• Level 1: Understanding box plots
• Level 2: Understanding box plots
• Understanding frequency tables
• Understanding histograms
• Skewness of histograms

Discrete mathematics

• Permutations
• Combinations
• Challenge How to get home in bekomaze
• Challenge Tic-tac-toe