“反馈” ,来自于“三论”(控制论、信息论、系统论 )基本原理之一的反馈原理。“通过反馈实现目的的活动就是控制 ,系统的输出转变为系统的输入就是反馈。”(《教育研究》) 1984年第 5期第 16页 )。教学活动是通过反馈来实现有目的的活动 ,它是一个可控的反馈系统。反馈原理告 “Feedback” comes from the feedback principle of one of the “Three Theories” (control theory, information theory, system theory). “The activity that achieves purpose through feedback is control, and the output of the system is converted into input of the system is feedback.” (“Education Research”) No. 5, 1984, p. 16). Teaching activities are achieved through feedback to achieve purposeful activities. It is a controllable feedback system. Feedback principle