Mathematics — Grade 9

Whole Numbers, Proportion, and Financial Mathematics

This unit covers the foundation you need for all later mathematics. You will learn to:

Exponents: The Power of Powers

You already know that 3 \times 3 = 9.

Numeric and Geometric Patterns: Finding the Hidden Rules

Patterns are everywhere. You see them in floor tiles, in music rhythms, and in the seasons that repeat each year.

Revision: Whole Numbers, Integers, Exponents, and Patterns

This revision unit covers the four main topics from Term 1:

Algebraic Expressions

Algebra uses letters to represent numbers we don't know yet. This lets us write general rules and solve problems.

Algebraic Equations: Solving for the Unknown

Equations help us find unknown values. Here is a simple example:

Functions and Relationships

This unit teaches you about functions and relationships between quantities. You will learn how to find input and output values, and how to show the same relationship in different ways — using words, flow diagrams, tables, formulae, and equations.

Revision: Algebraic Expressions, Equations, and Functions

This revision unit brings together three important Term 2 topics:

Graphs: Visualizing Mathematics

Graphs are visual ways to show relationships between numbers. You see them everywhere: temperature charts, growth graphs, maps with coordinates.

Geometry of Straight Lines: Understanding Angles

This unit teaches you about lines and angles. You will learn:

Geometry of 2D Shapes and Construction of Geometric Figures

In this unit you will study triangles and quadrilaterals in depth. You will learn to classify shapes by their sides, angles, and diagonals. You will discover important relationships such as the angle sum of polygons and the special properties of congruent and similar triangles.

Revision: Graphs, Straight Lines, and 2D Shapes

This revision covers three main topics from Term 3:

Transformation Geometry

This unit teaches you how to move and flip shapes on a coordinate plane. You will learn three main types of transformations:

Area and Perimeter of 2D Shapes

This unit teaches you how to calculate the perimeter and area of two-dimensional shapes. You will work with polygons (shapes with straight sides) and circles. You will also learn the Theorem of Pythagoras, which helps find missing lengths in right-angled triangles.

Surface Area and Volume of 3D Objects

This unit teaches you about three-dimensional objects (also called solids). You will learn how to calculate:

Revision: Transformation Geometry, Area and Perimeter, and 3D Objects

This revision unit covers three major topics from Term 4: