The Teaching Machine

BF Skinner created the teaching machine in 1954 after he attend his daughter's 4th grade math class and deemed the lesson in addition ineffective.  Skinner's issue with the lesson was that the teacher did the lesson on the blackboard and then passed out papers to the students and asked them to practice the problems on their own.  He could clearly see some students understood and where able to do the task at hand, while others were clearly lost.  Skinner believed that the students would learn better if they were able to work at their own pace and then were given instant feedback with positive reinforcements.