Right now videos on Edpuzzle aren't available without an internet connection. An internet connection is necessary so that teachers can see their students' progress as they complete a video lesson. We track all the information on our servers so teachers can follow the activity of their students without any delay.
We also monitor users' internet speed to adjust video quality and ensure that users have the smoothest experience possible with their connection.
We'll explore the option of offline viewing in the future, but at the moment, make sure that your students are connected to the internet when they complete their assignments.