Zearn is a nonprofit curriculum publisher and software developer on a mission to help all kids love learning math. Our entire K-5 curriculum - including 400 hours of digital lessons with on-screen teachers and supportive remediation - is available for free. Kids, teachers, parents, and caregivers can directly access and get oriented to all of our top-rated content 24/7, outside of school, including paper-based materials that can be used without a device.