It’s easy to become so familiar with concepts that they seem
trivial. It’s difficult to remember when you didn’t know, but a little
retrospective amnesia can go a long way.
(SOCS-P Arnold Arons: Teaching Introductory Physics)
Class
demos can serve a purpose but it is important that students be involved in the
thinking process. The punch line of the demo is the thinking, not "because
of inertia"
(SOCS-I Arnold Arons: Teaching Introductory Physics)
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