About this lesson
About Counting Principles
Counting Principles is an interactive Grade 11 mathematics lesson on Scholi. Master factorials, permutations, combinations, tree diagrams, and the Fundamental Counting Principle.
What this lesson covers
- Permutations
- Combinations
- Factorials
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Common questions
What does Counting Principles cover in Grade 11?
Counting Principles covers Permutations, Combinations and Factorials. It is an interactive Grade 11 mathematics lesson: you explore each idea with a visualizer, check the rules on a cheat sheet, and answer practice questions that are marked as you go.
How do you practise Counting Principles in Grade 11?
Counting Principles has 75 practice questions across 5 topics, each with easy, medium and hard levels. You answer in the browser and every answer is marked at once, with hints when you are stuck, so you always know how you are doing.