Hi William, It is always a challenge to understand just how much the students are getting from the lecture/demonstration that you are sharing with them. We as instructors have to look for different ways of getting and processing the feedback we are receiving. A method that you might want to try is to hand out 3x5 cards after you have delivered a lecture. Ask the students to give you feedback on the delivery and content. They do this anonymously so it is low risk for the students. You will find that you receive valuable feedback on how you did. Ask the students to give you feedback on specific points that helped or hindered them in understanding certain concepts. Another strategy you might want to try is called a structured outline. You develop an outline giving the steps that you are going to cover with the main topic headings listed. Below the topic headline will be bullets and lines for the students to follow and fill in. This approach enables the students to stay focused as well as showing them that you want them to get the specific points you've listed. Hope these ideas are of help to you. If you have any other questions let me know. Gary