While we carefully crafted the free tier of Adaptive Learning to give you a substantial (and flexible) amount of content, we understand that you might want more. Maybe a lot more! We want more teachers to try Woot Math and see, first-hand, the positive effects for their students. We have launched a referral program that will help us get the word out to more teachers and help you unlock more free content at the same time! We think it is a win-win for you and for us.