Block 3. Interactive Video

Interactive video adds quizzes, hotspots, and branching that beat passive watching — the evidence, the six interaction types, and how to track them.

How to design in-video quizzes and polls that teach, score them correctly, and track every answer as an xAPI statement or SCORM interaction.

How to design, build, and track branching video scenarios — the node-and-edge model, controlling cost, path analytics, and when branching is worth it.

How to build, track, and make accessible clickable video — hotspots, timed overlays, xAPI tracking, and the WCAG 2.2 target-size rules that matter.

How to build learner notes, bookmarks, and shared annotation for video — timestamped storage with W3C standards, device sync, and GDPR/FERPA privacy.

How to add chapter markers, interactive transcripts, and in-video search to learning video — the W3C standards, accessibility, tracking, and build-vs-buy.

How to build an interactive video player — the HTML5 event model, overlay layer, xAPI tracking, and the build-vs-buy decision for learning teams.

The full reference architecture for interactive learning video — player, overlays, xAPI tracking, and how it wires into any LMS via cmi5 or LTI.