I spent a bunch of time adjusting the needle position on my machine so that I could line up the fabric with the guide/line on the presser foot.
Then I wrote it down! I keep all my 'figured it out' notes on small notecards next to my machine. Then I can look then up rather than trying to remember them. I have notes about machine settings (I just made one today about machine applique!), cutting various triangles, cutting binding strips, etc...
Also, I've been quilting for a few years and I'm terrible at strip sets. I don't like sewing a WOF (40 inch) strip to another one. Ugh. For beginners I would make them shorter (like in half). And even (my preference), cut it into rectangles (or squares) and sew those.
Good luck with your teaching! What a fun way to meet and share with other quilters!