目前中学化学实验教学中普遍存在的问题是实验仪器药品缺少。至于那些装置复杂,需用仪器较多的实验,一般学校做起来困难较多,或者没有条件去做。因此在实验教学中,注意研究将装置庞杂不易操作的实验改变为需用实验仪器较少的简易装置去做,这对于实验设备条件较差的学校开展化学实验教学,提高教学质量是有帮助的。 At present, the common problem in chemistry experiment teaching in middle schools is the lack of experimental instruments and drugs. As for those devices that are complicated and require more experiments with instruments, it is more difficult for ordinary schools to do it or there is no condition to do it. Therefore, in experimental teaching, attention should be paid to the study of changing the installations that are not easy to operate to a simple device that requires fewer experimental instruments. This is helpful for chemical experimental teaching in schools with poor experimental facilities and improving teaching quality. .