Grade 9 Mathematics
4 Seasons
Grade 9 mathematics serves as a fundamental stepping stone in students’s mathematical journey, providing a comprehensive introduction to key mathematical concepts and skills. This grade level covers a diverse range of topics designed to build a solid foundation for more advanced mathematical study.
Excelling at Grade 9 mathematics is important as it helps providing a strong foundation for mastering mathematical principles.

07:52Episode 1
Geometry of 2D Part 1: Congruent
Episode 1
In this lesson, you will learn how to establish the minimum conditions for congruent triangles and establish the minimum conditions for similar triangles.

07:47Episode 2
Geometry of 2D Part 2: Similarity
Episode 2
In this lesson, you will establish the minimum conditions for similar triangles.

08:15Episode 3
The Theorem of Pythagoras
Episode 3
In this lesson, you will learn how to solve problems involving unknown lengths in geometric figures that contain rightangled triangles.

08:50Episode 4
Area of Perimeter Part 1: Perimeter
Episode 4
In this lesson, you will learn how to calculate the perimeter and area of polygons and circles, and investigate how doubling any or all the dimensions of a 2D figure affects its perimeter.

08:21Episode 5
Area of Perimeter Part 2: Area
Episode 5
In this lesson, you will learn how to calculate the area for 2D shapes.

Area of Perimeter Part 3: Doubling the Dimensions
Episode 6
In this lesson, We will further investigate how doubling any or all the dimensions of a 2D figure affects its perimeter

Surface Area and Volume of 3D Objects Part 1: Surface
Episode 7
In this lesson, you will Understand how to use appropriate formulae and conversions between SI units to solve problems and calculate the surface area of rectangular prisms, triangular prisms and cylinders.

Surface Area and Volume of 3D Objects Part 2: Volume
Episode 8
In this lesson, you will Understand how to use appropriate formulae and conversions between SI units to solve problems and calculate the volume of rectangular prisms, triangular prisms and cylinders.

Surface Area and Volume of 3D Objects Part 3: Capacity
Episode 9
In this lesson, you will understand how to use appropriate formulae and conversions between SI units to solve problems and calculate the capacity of rectangular prisms, triangular prisms and cylinders.

Surface Area and Volume of 3D Objects Part 4: Dimensions
Episode 10
In this lesson, we will investigate the effect of doubling the dimensions on volume and surface area.