25
/it/
it
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
March 31, 2021
4743239
423828
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1 gen 1930 anni - Overhead Projector

Descrizione:

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.

Aggiunto al nastro di tempo:

4 mesi fa
0
0
111
Ed 131 Technology Timeline

Data:

1 gen 1930 anni
Adesso
~ 91 years ago
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