Massive open online courses are one of the most prominent trends in higher education in recent years. Instructional videos play a significant role in the massive open online courses platform. This study tested the impact of sending danmaku related to video content versus sending danmaku not related to video content versus not sending danmaku in…

Video lectures are being widely used in online and blended learning classes worldwide, and their learning effectiveness is becoming a focus of many educators and researchers. This study examined the cognitive load and learning effectiveness of video lectures in terms of the type of knowledge being taught (declarative or procedural) and instructor…

Massive Open Online Courses (MOOCs) have become increasingly common in recent years. As the main component of MOOCs, instructional videos play a significant role in students' learning. This study builds on the extant research on multimedia learning by testing the impact of teachers' continuous vs. intermittent presence in procedural knowledge…