There are 17 Principles of Multimedia Learning lists in the Cambridge handbook.
In the video, Dr.Ray Pastore explained some of these principles, but not all of them. The principles that he did not follow are explained in the following video. When creating a multimedia learning object, the reason why an expert might not be able to follow all the principles is that those principles conclude all the expects of making a multimedia learning object. Also, since there are so many principles, an expert will use the fittest principles to support the learning objectives.

The multimedia principle, modality principle, redundancy principle, signaling principle would apply to a PowerPoint presentation in a classroom. Because those principles stated that when making a PowerPoint, you want to add graphics to help you explain things and also highlight the key information and so on.

Reference

Marketing Mix Introduction Example Ppt Presentation. (2021). [Image]. Retrieved from https://www.slidegeeks.com/marketing/product/marketing-mix-introduction-example-ppt-presentation