Metric Video

This one might help you better. You might find another one that helps too so let me know.

https://www.youtube.com/watch?v=qWPF3p-oVww


Here is another video that might help as well.

https://www.youtube.com/watch?t=20&v=cMFwpxkIFMY

More videos found by students.

https://www.youtube.com/watch?v=XKCZn5MLKvk

https://www.youtube.com/watch?v=8XoDCewJ-z0