Teachers

Many students don't buy expensive resources, while every student has access to free materials. Maximize student learning by using free resources.

Let us know how we're doing. What new products do you want to see? What existing products do you want to see grow?

Register and become a verified teacher. When you are verified, you get access to instructor-only options, like solutions to even-numbered solutions.

Students

Send us feedback, either through a feedback form (e.g. on Labs and Videos pages) or by sending us an email.

Register to help us build a body of students who share a desire to make education materials more accessible and affordable.

Share resources that you find helpful with your fellow students, or contact us if there's a new resource you would like to see.

Have a statistics question? Post it in the public forums.