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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 janv. 1841 - The chalkboard was introduced into the classroom.
Description:
By Tungsten (photo taken by Tungsten) [Public domain], via Wikimedia Commons
Ajouté au bande de temps:
A Brief History of Educational Technology
By
George Tam
18 sept. 2017
0
0
833
Date:
1 janv. 1841
Maintenaint
~ Il y a 184 ans
Les images:
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