Prime and Composite Numbers Lesson
Learn all about prime and composite numbers in this full lesson video!
Grade 8 Maths
Term 1
Whole Numbers
CAPS aligned
Content covered in this Prime and Composite Numbers lesson:
Concepts you will learn in this Prime and Composite Numbers lesson:
- Whole numbers
- Learn what whole numbers are
- Natural numbers
- Learn what natural numbers are.
- Learn what prime numbers and composite numbers are and how to determine if a number is prime or composite.
- Prime factors
- Learn how to find prime factors for a given number.
- Prime factorisation
- Learn how to write a number as a product of its prime factors using the ladder method.
- Learn how to use prime factorisation to find the highest common factor (HCF) and lowest common multiple (LCM) for a given set of numbers.
Lesson format:
- During the video, I spend time teaching and explaining about the concepts covered in the lesson.
- I give full examples where I show you how to answer problems, showing all working out.
- You will have a chance to work on practice examples with a timer – this will help you to get used to working with a time limit (a necessary skill for when you need to do tests and exams).
- I go through all the practice examples in detail after you have had time to complete them, so that you can see how you did – and where you went wrong if you made mistakes.
Get the worksheet that goes with this lesson
The worksheet includes the examples I go through in the lesson – and in some cases there may be sections that you can fill in on the worksheet instead of needing to copy everything down during the lesson (like tables etc).
The worksheet also comes with an extra exercise for you to use to practice the concepts taught in this lesson after you have finished the video.
Additionally, the worksheet includes answer sheets – with fully worked out solutions, so you can check your work and see how to complete the problems in the exercise step-by-step.
