Get Your Students Hired
I like your idea of doing a demonstration and then watching the powerpoint and using it as a second learning style. I also like to have the powerpoint available as I am showing the students something just in case they do not understand why we are doing this. Most of our students are hands on and learn much more from a visual presentation. I feel that over half my class tends to drift off when I begin a powerpoint. I try to ask questions to bring them back into the presentation but this is the time they secretly pull out their phones and read their emails. But, if I am doing a demonstration and the powerpoint at the same time, this may eleviate the problem.