Course: Year 11 Mathematics Extension
Permutations and Combinations
Planned counting techniques, arrangements, selections, and combinatorial reasoning.
Active lessons
5
Status
Active
Lesson flow
Learn -> Guided Practice -> Independent Practice -> Mastery Quiz
How to use this unit
- Start from lesson 1 and move through the pathway in order.
- Use guided practice before attempting independent practice.
- Mastery quizzes check whether the skill is ready for review or extension.
Unit pathway
Lesson pathway
5 of 5 active
Lesson 1
Counting Principles and Factorials
Use multiplication, addition, and factorial notation to count staged choices and simple arrangements.
Lesson 2
Permutations
Count ordered arrangements using factorials and permutation notation.
Lesson 3
Combinations
Count unordered selections and compare combinations with permutations.
Lesson 4
Arrangements with Restrictions
Handle together, not-together, repeated-object, and circular arrangement restrictions.
Lesson 5
Permutations and Combinations Exam Practice
Practise mixed Extension counting questions involving principles, permutations, combinations, and restrictions.
Part of the Online Learning Package
Unit previews stay public, while individual lessons require active online learning access.