PowerCert Animated Videos provide succinct and clear explanations of big principles in hardware and networking. I referred to them fairly frequently when I was teaching an introduction to networking course in 2015..

Applications for Education.
Most readers of this blog will never require to know what MAC address is or how it fits into the networking process. However, it is great to understand and can handy to know how to locate it if your IT administrator ever asks for it.

As the title states, the video describes what a MAC address is, how its written, where to discover it, and its function in networking. The video also does a fantastic task of discussing the key difference between MAC addresses and IP addresses.

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