knowledge externalization strategy steps: selection, organization, integration.
--> few tools support all
text 보다 diagramming 을 선택한 이유: multiple levels of mental representations
videoSketch
problems of video lecture
- lack of feedback mechanism
- spatio-temporal vs linear delivery
- verbatism, conceptual question 에 약하다는 사전연구
why sketching(diagrammming)
- multiple levels of mental representations
- Sketching is fascinating scientifically because it engages visual, spatial, and conceptualknowledge and skills (CogSketch)
- leverage video's multi-modalities?
