https://www.youtube.com/watch?v=KYDYzR-ZWRQ This video show me a clear explanation about B. F. Skinning's Behaviorism Theory and some application based on behaviorism theory to improve teaching. According to multimedia learning principles, my evaluations are as follows: 1. This video meets very well in coherence principle because all the words, pictures and sounds are relevant , which dose not influence the understanding and distraction of Behaviorism. 2. In this video, the video-maker intendedly highlights the keywords ( signaling principle ) to help audiences have a better recognition about Behaviorism, and it is conducive to audiences to think based on their previous experience. 3. After introducing the definition of Behaviorism, the video-maker believes the definition is too complicated to let audience comprehend, so the video-maker adds a mixture of graphics and narration like this, which makes people learn better the meaning of this part. That shows the redundancy...