Teacher-curated, self-paced courses. Looking for a guided sequence through a full topic? See Learning Paths.
How many students in a class like neither tea nor coffee, when you know how many like each, and how many like both? Sets answer this kind of question. In this course we learn the language of sets, we pair the elements of two sets in relations, and we find the special relation that we call a function, with its domain and its range.