Yes! Though the current content is intended for students between the ages of 7 and 10, there are students who are ready earlier.
But here’s a (non-)secret. We are taking a radically new approach to mathematics education that all students would benefit from seeing and enjoying the content we offer, no matter their age and their background. We’re teaching deep conceptual understanding and the ability to see mathematics from a profoundly broad perspective. Yes, the mechanics of the content we discuss might already be familiar, but the empowerment and the thinking we offer, even on “elementary” topics, is of immense value to all. We’re teaching students to be confident, agile, and empowered problem solvers, not just successful exam takers.