Hi Ryan,
The answer depends on your educational background
If you have a last-year high school or university background in maths, physics, engineering simply get some notes (or one of the textbooks which purports to prepare you for PPL) read up and do the exams. You shouldn't need help.
If you have no maths physics or technology background, then you would be better off spending some time in class. However, you should still get hold of a good textbook, and read up first.
good luck