By inserting polls, quizzes, drawing, or text feedback slides you can easily gather formative data that will enable teachers to determine the extent to which students are grasping the content of the work. It is also possible to insert Youtube and other videos depending on the level of your account. A free account has extensive features and allows 30 participants at any one time.
The presentation also has its own URL and can be viewed at anytime and even set for homework. All data received during a presentation is stored in your results folder for record keeping and reflection when setting ongoing work.