Schedule breaks for stretching to encourage sustainable ergonomics.

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Help students develop good habits for computer use by setting stretch breaks at regular intervals. You can teach students the rule 20-20- 20, which is that every 20 minutes you should take a break of at least 20 seconds by looking at least 20 feet away.

Example: "Give your eyes a rest and look around the room!"

See this and related tips as a Tip Sheet: http://csteachingtips.org/tips-for-lab-rules

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