Look at these infographics...
Infographic 'A':
Answer "true" (T) or "false" (F). PROVIDE EVIDENCE FOR THE FALSE
- Before blackboards, teachers couldn't teach all students at the same time.
- Pencils made it easier to correct mistakes.
- Pens weren't very popular in the 19th century.
- Teachers didn't like mimeographs because they lost a lot of time using them.
- The overhead projector was used in education and later in the military.
Infographic 'B':
Answer the following questions:


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