Opportunities and challenges for online education. We have a chance to move forward from a teacher-centered to a learned-centered model of instruction. Online learning is an excellent opportunity for educators to implement learner-centered pedagogies that promote active, constructivist, and inquiry or problem-based pedagogies. The students take an active role being constantly involved in the learning process through their experiences. Some learning activities are hard to perform in a real environment because of high expenses, lack of infrastructure availability or terrible performance.