When the lecture or part of it is flipped out of the classroom, it provides an opportunity to use many different techniques to enhance student learning. One interesting technique used by our colleague Joanne Bagshaw was recently discussed in the Washington Post. It involves the use of different forms of meditation to help students focus and think more clearly. Check out the article below for more details. I think this approach may be particularly effective in this information age where people are not comfortable unless they are trying to look at three screens at once, and in flipped classes where students are often using technology during the contact hours. Consider flipping slowly.
To get students to focus, some professors are asking them to close their eyes, Andrew Reiner, Washington Post, April 7th, 2016