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aug 7, 2006 - counting on my fingers

Description:

i started learning addition & subtraction but instead of doing it in my head, i needed to count the numbers on my fingers to help me. this is CONCRETE OPERATIONAL stage.

Added to timeline:

Marissa McCanna

ByMarissa McCanna
9 Nov 2017
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414

Date:

aug 7, 2006
Now
~ 19 years ago

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