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apr 7, 2002 - realized that my ball didn't just vanish when it rolled under the couch

Description:

I figured out my ball didn't just vanish when i could't see it so i would go look for it. I learned this around 18 months, this is the SENSORIMOTOR stage.

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Marissa McCanna

ByMarissa McCanna
9 Nov 2017
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0
400

Date:

apr 7, 2002
Now
~ 23 years ago

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