I just discovered that Yellow Cat Publishing has a YouTube channel with a variety of music theory teaching videos. While you’re checking this out, you might want to download and print one of their free Circle of 5ths diagrams!
Here’s a video clip on using the Circle of 5ths chart to learn the order of sharps and flats:
It’s great to have all these wonderful music theory teaching videos coming out! Anyone know of other great ones that can be used by teachers and/or students?