反馈,是控制论的重要概念,它指的是被操作物不仅按操作中心的指令活动,而且其本身的状态,还作为一种新的信号返回转入,使操纵中心对操作施以调节。控制论的研究认为,任何操作只有通过反馈才能进行得更确切,才能实施更有效的控制,从而达到预期的操作目的,这一原理具有普遍意义。对于数学课堂教学, Feedback is an important concept of cybernetics. It refers to the fact that the operated object not only operates according to the instructions of the operation center, but also its own state, and also returns as a new signal, enabling the operating center to regulate the operation. The study of cybernetics argues that any operation can only be performed more accurately through feedback, and more effective control can be implemented to achieve the intended purpose of operation. This principle has universal significance. For mathematics classroom teaching,