In math, you may hear and use the terms “series” and “sequence” often. This is because you may have to apply your knowledge of these terms to the directions that are given on a test or within a word problem. If the student does not know these terms, they may commit errors in working the math problems.
If you see a sequence of numbers, you will see a set of numbers that are placed one after the other. They are usually ordered in a certain pattern. You typically see sequences in geometry and arithmetic. A series of numbers uses the sequence of numbers, but it only becomes a series when the names in the course are added up.