This document discusses online teaching and learning. It begins by defining online learning as instruction delivered over the internet by faculty, which can be synchronous (real-time) or asynchronous (anytime access). It then discusses the advantages of online learning for both students and teachers, such as flexible access, use of multimedia, and opportunities for collaborative work. Challenges of online teaching are also addressed, like maintaining student engagement and providing timely feedback. Overall assessments in online courses need to evaluate not just tests but also student interaction through discussions and group projects.