Object Interactions

Paul Andersen explains how object interactions can add or remove mass or energy from a system.

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Just uploaded a new video on using phenomenon like this to engage students and drive inquiry.… https://t.co/1J538cODk7
Jul 9, 2019, 3:26 PM
It's not an exaggeration to say that I've been working on this video for five years. I hope this is helpful.… https://t.co/lIaQTTXvVv
Jul 2, 2019, 5:29 PM
I've spent the last five years working with teachers implementing the #NGSS. Sharing what I've learned through a n… https://t.co/3t2qa2soaK
Jun 10, 2019, 1:49 PM