After learning the fifth lecture, I learned how to edit videos with editing software. This time, I made a long video to introduce the movie soundtrack according to my own interests. In the beginning, I did not consider the theories and principles I learned in class. I just edited an interesting and effective video with my own understanding and feeling. But after I reviewed the content of the lectures, I found many defects in my video and made some improvements.

1. Dual-coding theory: in the original video, I just put the frame together. But according to Dual-coding theory, people learn better when they receive visual and verbal stimuli at the same time, so I recorded the voice-over and added music to match the frame.
2. Signaling principle: People learn better when essential words are highlighted. I enlarge the font size of the key words（the name of the movie or the title of the music) and mark them with conspicuous colors.
3. Temporal contiguity principle: I put the voiceover used to describe the plot together with the corresponding frame. And when the soundtrack is displayed, the picture clips in the original film are played at the same time without editing.
4. Redundancy principle: People learn better from animation with narration than from animation with narration and text except when the onscreen text is short. There are subtitles in the original video. I removed the subtitles, leaving only some keywords.
5. Intensity: At the beginning of the original video, I directly introduced the soundtrack of the first movie. And in front of each film, there is no introduction to the background or director of the film. Later, I added a mashup of dancing scenes from different movies in the first part. And before each part, the introduction of the plot and background of the film is added. This makes the video more vivid and interesting, arousing the viewer’s interest.
6. Readiness: I added an intro to illustrate the importance and aesthetic value of the film soundtrack. This shows the value of appreciating the soundtrack and creates the viewer’s learning motivation.