**Abstract**

Videos have become a dominant element in online learning and promote pedagogical renovations. Different formats of videos, such as instructional videos, video conferences, and video games play distinct roles in asynchronous or synchronous online learning. Videos have made both declarative and procedure learning more accessible, flexible, and affordable. When combined with new technologies like computers, the internet, or digital microscopy, videos enable learners to obtain not only knowledge but also develop skills.

**Keywords:** online learning, video, asynchronous, synchronous, declarative learning, procedural learning, instructional video, video conference, video game, digital microscopy
