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AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
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22h 32min, oct 11, 1830 y - doubts about the effectiveness of the Lancastrian system surfaced. With the decline of this teaching method, the use of monitors and sandboxes ended. Later the sandboxes would be replaced by individual slates.

Added to timeline:

1 months ago
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10
laurens timeline ed tech
ed tech 10-17-18

Date:

22h 32min, oct 11, 1830 y
Now
~ 188 years ago
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