Flip Teaching Has Flaws

Education reform is needed. Giving kids worksheets that help them pass a standardized test is not working. We know this country is not one of the top in education. It should be. I think Project-Based-Learning is a good approach where you apply the knowledge and skills and learn more (look at http://www.nsgt.org/resources/articles/problem_based_learning.asp). But, what about Flip-Teaching? The students have instruction outside the class and then apply what they've learned in class. Would this work? I think it's a good idea to have them prepared before class, watch videos, rewind and play back at their own pace. But, I think there are major problems. How do you get the students to watch the videos or engage in the instruction? Would assigning some simple questions to answer work? What if they don't have the technology to get the instruction? I have a slow internet connection at home and it makes it hard for me to watch any videos. It just seems like this solution wouldn't work so well.