I use Mr. Andersen's videos all the time in my AP Biology class as a precursor to my lectures. This is my write-a-long, or WAL as I call them, for his "Cellular Respiration" video.
My WAL is broken into the sections shown within the video (introduction, light reactions, dark reactions, photorespiration) and is completely fill-in-the-blank for students while the video plays.
Note that this WAL does not have a summary/applications section like most of my other video WALs do- it's just a straightforward fill-in-the-blank sheet all the way through.
Also note that there is no key included with this product. It's good for you to watch the video so you know what your students will see, anyway :)