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1 janv. 1930 - Overhead Projector

Description:

In the United States, the overhead projector was used to train the US military, but has since been adapted into schools and organizations. The effectiveness of a common screen facilitates learning, making it an effective tool.

Ajouté au bande de temps:

Ed 131 Technology Timeline

ByVivian Chinwen Huang
29 nov. 2020
0
0
497

Date:

1 janv. 1930
Maintenaint
~ Il y a 95 ans
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