The document provides an overview of online learning, including definitions of key terms like online learning, blended learning, and open educational resources. It also shares data on the growth of online learning enrollments in K-12 education and higher education. Promising practices for online learning are discussed, such as providing multiple pathways for students to learn, requiring interaction between students and teachers, and implementing quality assurance measures. Student demographics and achievement levels in online programs are also reviewed based on a study.