41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
4743239
423828
2
Create a timeline
Public Timelines
For companies For educational institutions For teachers For students Dashboard
For educational institutions For teachers For students Dashboard
FAQ
Create a timeline
Public timelines
FAQ
About & FeedbackTermsPrivacyFAQ
Support 24/7  
DashboardGet premium
Donate

jan 1, 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.

Added to timeline:

Ed 131 Technology Timeline

ByVivian Chinwen Huang
29 Nov 2020
0
0
505

Date:

jan 1, 1930
Now
~ 96 years ago
About & FeedbackTermsPrivacyFAQ
Support 24/7  
DashboardGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL