小学自然课中的实验课应该如何去做呢?简单地说应该是“准、新、活”。 准,就是在进行课堂演示实验时,教师的操作要准;实验现象显示要准;学生分析讨论后得出的结论要准。要做到这三“准”,教师应该在课前试做课堂实验,试做无问题,然后再进行课堂演示。这样,教师就能保证课堂实验演示的准确和实验现象的可靠,就能心中有数。 新,根据内容特点和课堂实验教学需要,设计新的实验方案,以强化实验教学效果。如《日食和月食》一课,课本上写的是:用灯泡当太阳,小球当月亮,学生的头当地球来进行的。这样虽然简单 What should be done in the experiment class in the elementary school natural class? Simply put, it should be “quasi-new, lively”. Quasi-accurate, that is, during the classroom demonstration experiment, the teacher’s operation must be accurate; the experimental phenomenon must be accurate; the students must be accurate after the analysis and discussion. To achieve these three “precision”, teachers should try out classroom experiments before class, try to do without problems, and then perform classroom demonstrations. In this way, the teacher can guarantee the accuracy of the experimental demonstration in the classroom and the reliability of the experimental phenomenon. New, according to the characteristics of the content and the needs of experimental teaching in the classroom, design new experimental programs to strengthen the experimental teaching effect. For example, in the “Eclipse and Lunar Eclipse” lesson, textbooks say: Use the light bulb for the sun, the ball for the moon, and the student’s head for the earth. This is simple though