在日常的教学检查中,常常听老师们抱怨:我们的教学条件太差,没有实验材料和设备,没办法上好自然课。说实话,我们的教学条件是差了一点。可是就小学自然学科所研究的内容,学生所认识的对象,以及所使用的方法来看,即使一个再完备的实验室也满足不了要求。很显然,老师没有把学生纳入到教学活动中,而是把学生排斥在教学活动之外。事实上,在整个教学过程中,无论是课前准备、课后实践,还是课上探究,都离不开教师和学生。而教师只是引导者、参与者,决不是替代者,学生才是整个过程的活动者、探求者,也是教师决不能替代的。因 In daily teaching checks, teachers often complain that we have poor teaching conditions, no experimental materials and equipment, and no good natural class. To be honest, our teaching conditions are a little worse. However, according to the contents of the study of the natural sciences in primary schools, the objects they know and the methods they use, even a complete laboratory can not meet the requirements. Obviously, the teacher did not include the student in the teaching activity, but excluded the student from the teaching activity. In fact, throughout the teaching process, whether it is pre-class preparation, after-school practice, or in-class research, are inseparable from the teachers and students. The teacher is only the leader, the participant, by no means the substitute, the student is the activist of the whole process, the explorer, but also the teacher must not substitute. because