Recorded lectures are an excellent way to teach because of several reasons. First, if a student misses a class on account of being unwell or otherwise, he or she can just access the recorded video lectures and catch up. Often, students like to revisit something that was taught in class. Recorded lectures provide students this capability so they can learn and relearn the concepts at their own pace, and in their own time.
Learning management systems like Edmodo, Moodle, and Blackboard are capable of creating interactive learning activities like quizzes. Just go through the instructions for creating them and you will have set up an excellent way to teach your students more engagingly.