古代日本的老渔民发现如果将几条生性活泼的沙丁鱼放入一群被打捞的懒惰的鲇鱼当中,由于好动的沙丁鱼在鲇鱼中乱窜,给鲇鱼带来一中危机感,它们奋力游动,从而避免了由于窒息而亡。这便是有名的鲇鱼效应。这个例子不由得让我想起了我们的学生。他们的学习过程,是自主探索与交流合作的互动过程。只有当学生发挥自己的主观能动性,通过独立的思考,积极的探索,才能把自己的观察、操作、实验的结果,在与人交流,合作的过程中充分的阐述,这样的协作过程才是有成效的、积极性向上的。在学习的整个活动过程,并不需要老师的过多干涉,在这样一个轻松、 Old fishermen in ancient Japan found that if a few lively sardines were placed in a group of lazy anchovies which were salvaged, the active sardines brought a sense of crisis to the anchovy as they struggled Swim, thus avoiding the death due to suffocation. This is the famous catfish effect. This example can not help but remind me of our students. Their learning process is an interactive process of independent exploration and exchange and cooperation. Only when students exert their initiative, through independent thinking and active exploration, can they fully explain their own observations, operations and experimental results in the process of exchanging and cooperation with others. Such a collaborative process is a Effective, positive and progressive. In the whole process of learning the process does not require teachers to interfere too much in such a relaxed,