You’ll really appreciate the flexibility of an online course as you study the principles of calculus: derivatives, integrals, limits, approximation, applications and modeling, and sequences and series. With no preset test dates or deadlines, you can take as much time as you need to learn and practice Functions & Graphs, Limits & Continuity, Derivatives, the Application of Derivatives, Antiderivatives and definite Integrals. And of course, Calculus I comes with 10 hours of free, live one-on-on-one tutoring help, with more available if you want it.