Below are two videos. One explains normal form and prime form; the other explains transformations (transposition and inversion).
For a sheet of blank clockfaces to download, click here.
Note: This video uses interactive technology. The picture-in-picture can be swapped or even viewed side-by-side. The video also uses a menu so you can quickly navigate to certain portions of the video. For more explanation, see this video from Kaltura.
download normal/prime form slides– download normal/prime form captions/transcript
download transformations slides– download transformations captions/transcript