Online learning is becoming increasingly popular and accessible in education at all levels, from preservice teaching programs to professional development for current educators. It allows for flexible and affordable options that can help address issues like teacher shortages. Studies have found online learning is commonly used now for higher education, professional development requirements for K-12 teachers, and communication between educational professionals through online communities. While the quality of online learning compared to traditional in-person classes requires more research, it provides opportunities to individualize instruction and assessments for K-12 students.