This an excellent example of effective education done with a combination of great copywriting, clear and simple art, poignant animation and interactivity.
- Visuals, text, audio interplay make it more memorable (dual coding theory)
- Focused screens help user know what to pay attention to, also known as "selection"
- Sequential and repetitive information help with organization and information processing
- Associations with familiar items and how parts make up the whole helps viewer to integrate new information and store in long-term memory