I plan on teaching how to solve the Rubik's Cube! Specifically, I will be teaching the Beginner's Method (layer-by-layer). I'll also be teaching a bit of Singmaster notation on the side (which is the standard Rubik's Cube notation and is used in official competitions).
You should have a working 3x3x3—preferably, you should have one that turns well. A lot of the dollar stores around my house sell okay-turning cubes, so you may have luck with those (try to get the ones with rounded corners on each of the cubies/little cubes). Other than that, there's good quality cubes on the internet. Some good sellers are TheCubicle, SpeedCubeShop. AliExpress, etc. (Do not buy a GAN if you are just starting out, it'll be a waste—QiYi is a good budget brand and MoYu is all-around nice. Also, don't buy a Rubik's Brand.)
Other than that, I'll also include some history behind the Rubik's Cube (and other puzzles with enough interest), and I'll introduce some of the Rubik's Cubing communities that are out there.
I'm open to more suggestions! As such, the exact specifics in the schedule will be tentative. I do know that I will host on Mondays and Thursdays at 19:30 EDT (except on holidays and that one day on June 28). I will usually also host office hours the day after at the same time.
I will not be going over speed-solving methods (CFOP, Roux, Petrus, ZZ, etc.) as I have not mastered all the algorithms. For CFOP specifically, YouTuber JPerm has a good compilation of tutorials.