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1 jun 1972 ano - Scantron

Descrição:

The scantron is brought into schools, simplifying standardized testing.

Adicionado na linha do tempo:

Tech in the Classroom :)

ByVictoria Sisson

25 out 2018

0

0

300

Data:

1 jun 1972 ano

Agora

~ 53 years ago

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