A lesson, practice activity, and teacher resource for exploring permutations and combinations.

This online quiz tests student understanding of permutations and combinations.

Probability questions using permutations and combinations of objects. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Thirty-five problems cover the topics of combinations, permutations, and factorials in various settings. To review the basics on this topic, click "View Lesson" button.

Let's Go to the Mall! is designed to help students understand the connection between various kinds of combinations (multiplication principle and choose numbers) and permutations.

When two or more atoms combine they give rise to a molecule. A molecule can be made up of many atoms of the same element. There are 112 elements known to man, so can you imagine the different permutations and combinations of molecules...

An article written for teachers with recommendations on how to present permutations, combinations, and the binomial theorem to students. It contains both useful suggestions about order of presentation and many class examples. A good...

This lesson focuses on Combinatorics, a branch of mathematics which is about counting. It includes 5 sections: Factorials, Permutations, Combinations, Combinatorics and Pascal's Triangle, and Combinatorics and Probability with examples...