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

[Free Registration/Login may be required to access all resource tools.] Determine all the possible permutations in a probability problem.

[Free Registration/Login may be required to access all resource tools.] This lesson covers how to define and calculate combinations of objects and recognize the difference between a combination and a permutation.

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...