Learning efficiency varies from student to student and is largely influenced by students' capability and motivation. Hence, motivation is represented in the feedback path as a switch. When student motivation drops to zero, the feedback path is switched off. The system becomes an open loop. Teachers receive no response from students and will try to work frantically, leading to over teaching.
Teaching becomes less tedious and professionally more fulfilling.
Students begin to recognise their own small achievements which help to further strengthen motivation. The teaching function must always be a human one. Teachers are more flexible and efficient compared with computers, when delivering a large amount of information, in digestible form, in a short period of time. Programming a computer to deliver digestible material to replace a teacher is very time consuming and costly. Hence the use of technology as an adjunct to human teachers is more efficient and practical than replacing human teachers with technology.