1 ene 1926 año - Pressey’s teaching machine created
Descripción:
 Machine won’t move on until right key is hit so student gets immediate feedback. (Candy was also given = further incentive). This type of machine gave students extrinsic motivation and promoted correct answers. 
Añadido al timeline:
fecha:
1 ene 1926 año
Ahora mismo
 ~ 99 years ago