Applications for Education.
A lot of readers of this blog will never need to know what MAC address is or how it suits the networking process. It is nice to know and can valuable to know how to find it if your IT administrator ever asks for it.

If you do teach networking, this video is one to bookmark and possibly utilize as an evaluation resource or video-based lesson in a tool like Edpuzzle.

As the title states, the video describes what a MAC address is, how its composed, where to discover it, and its function in networking. The video also does an excellent job of discussing the crucial difference between MAC addresses and IP addresses.

PowerCert Animated Videos offer clear and concise descriptions of big principles in hardware and networking. I referred to them relatively frequently when I was teaching an intro to networking course last year..