Once you log in with your free account, the site will record and then be able to recall for you:

• Your answers to multiple choice questions;
• Your self-chosen confidence rating for each problem, so you know which to return to before an exam (super useful!);
• Your progress, and specifically which topics you have marked as complete for yourself.

Your selections are for your use only, and we do not share your specific data with anyone else. We do use aggregated data to help us see, for instance, where many students are having difficulty, so we know where to focus our efforts.

You will also be able to post any Calculus questions that you have on our Forum, and we'll do our best to answer them!

We believe that free, high-quality educational materials should be available to everyone working to learn well. There is no cost to you for having an account, other than our gentle request that you contribute what you can, if possible, to help us maintain and grow this site.

Please join our community of learners.
We'd love to help you learn as well as you can!