What is a set?
A set is a folder in the learning plan that contains learning assets. Although the assets within it may have a due date, the set itself does not. A set can have subsets (which are more refined groupings within a set) but only two levels of subsets are allowed.
What is a series?
A series contains specifically-ordered assets whose order is important for learners. A series can contain assets of different types. It is often used to:
A series itself cannot be completed, but the assets within the series may be completable.