Each video lesson is developed to intentionally provide enough examples for a struggling student to be able to learn the information. For example, after teaching the equation for slope, one student might only need three examples to learn the equation and another student might need 20 examples. Our lessons have 20 examples to ensure that there is enough support for the students who need the most help.
That being said, the student who felt comfortable after three examples might get really bored doing 17 more. We recommend that if a student starts to feel really confident then he or she pause the video lesson and complete the remaining questions on his or her own. Then the student can check his or her answers and only watch the segments of the video in which the student made a mistake.