There are six principles mentioned in Dr. Ray Pastore’s video. I think there are two multimedia learning (MML) principles he has followed in his video: redundancy principle and spatial and temporal contiguity.

Redundancy principle suggests that although audience would like to see many kinds of media forms to help them understand, it’s better not to require the audience to process more than two forms at the same time because it may add cognitive burden and hurt the audience’s understanding. I think that’s way Dr. Ray’s video don’t use many combination of forms and the audience only need to listen to him talking and see the keywords on the powerpoint, which actually increases learning efficiency.

In terms of the spatial and temporal contiguity, it’s recommended to put related words and images on the same page instead of separate pages so that the readers won’t need to bother themselves to turn back and forth. So in Dr. Ray’s video, when pictures are embedded to better explain the situations, they are put either under the key words or beside the key words. I think that’s how Dr. Ray uses the spatial and temporal contiguity principle.

After learning the six principles, it’s not hard-pressed to understand why an expert would not able to use all the principles. I think to some extent these principles are not intended for a certain situation. People need to determine which principle is most suitable for them and would achieve their goals in the best way. From this perspective, it’s actually unnecessary to adopt all these principles in a single presentation.

Through this week’s study, I recorded a screen video to express my learning of Multimedia Skills

screencasting