Borrow a newbie, or non-, quilting friend. Then go over your lesson plan with them. It will be good practice. You will probably learn another way of looking at things. Take good notes with this so you will know what to do.
Please, PLEASE, do not keep repeating the same thing, rephrase it. If someone doesn't get it rephrasing will help.
Later on you can repeat.
Most of all encourage your students to relax and have fun.
All the above suggestions are great.
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