One of the first things that our team does with incoming electrical members is to teach the various components of the electrical system. Normally this involves repeated pointing at different parts of the robot, but the components would quickly be forgotten, so I looked for a way to reinforce the different components.
There is a tool that acts kind of like an online “guess who” but for any set of images. I quickly made a version for the electrical components that you can find at https://teacher.desmos.com/polygraph/custom/587e4115a4c05a2208a6b89b. I hope that you find it useful!