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Skinner's teaching machine, a mechanical device to control student progress in programmed instruction
Skinner's teaching machine, a mechanical device to control student progress in programmed instruction
A student using an interactive whiteboard
A student using an interactive whiteboard
Early 20th-century abacus used in a Danish elementary school
Early 20th-century abacus used in a Danish elementary school
19th-century classroom, Auckland
19th-century classroom, Auckland
Cuisenaire rods
Cuisenaire rods