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You don't have to worry if you miss a class. All lessons are instantly archived with digital-video-recorder controls for you to replay, pause, fast-forward, or rewind.

Classes adapt around you in every way—around your schedule, around your skill level, around your goals. Problems too easy, or too difficult? Our teachers will know before you do. We receive instantaneous data on how you're doing and the conceptual errors you're making, and we adapt accordingly.

Our teachers have dozens of practice questions at their disposal that they can drag and drop in real-time to match material to your level and build your confidence. Email your teacher at any time or get real-time answers during daily office hours. You don't have to wait to get called on.