以架構大綱支援影片教學：人機互動及教學設計與評量

Instructional videos have been a widely used learning material. However, their transient nature also increase the difficulty of learning from videos. In addition, watching videos is a passive learning process. Learners cannot effectively develop higher level thinking skills. This project incorporated structural overview into a video playing system and developed an editing system for teachers to edit structural overview with different levels of completeness and a structural overview task system for students to complete the structural overview of a video with different levels of completeness. These systems would like to promote the interaction and increase learning performance when learners learn from videos. The project also conducted two experiments. Experiment one was conducted for examining the effects of two formats (linear and hierarchy) and two representations (side by side and pop up)) of structural overview on learners’ learning performance, navigation performance, and system satisfaction. The results indicated that hierarchical overview can more effectively support learning and navigation than linear overview, especially the hierarchical overview is presented beside the video. However, the system satisfaction among the four groups did not demonstrate statistical significance. Experiment two was conducted for examining the effects of the structural overviews of different levels of completeness (control group without structural overview, partial group with partial structural overview, and complete group with complete structural overview) on learners’ learning performance, navigation performance, and system satisfaction. The results indicated that complete group demonstrated better learning and navigation performance than control and partial groups. However, partial group demonstrated the same learning and navigation performance with control group. In addition, the system satisfaction among the three groups did not demonstrate statistical significance.