This study explored the implications of designing instructional video using an integrated model includes segmenting, signaling, and weeding. Two intact sections (n=226) participated in the study, treatment group learned from a video designed with SSW model and the control group learned from the original video. The SSW design has several implications: the SSW model is an effective way to design instructional video, improves students’ learning outcomes, reduces their perceived learning difficulty, assists and promotes their higher-level learning. Each design principle has its unique effect on the leaning goals and facilitates certain learning outcomes and loses its potency for others. Finally, SSW model may better be used with long video to adjust students’ metacognitive process to the new video design
