-
Chalkboards were used in the classroom
-
Pencils were used in classrooms
-
Handheld calculators were invented and integrated into classrooms
-
The firsts film projector was put in a classroom
-
Overhead projectors started being used in the classroom
-
Ball point pens were invented
-
Typewriters were common in the classroom
-
Graphing calculators became popular
-
Interactive whiteboards were invented
-
Clickers were invented
-
iPads were invented and introduced to the classroom