论文部分内容阅读
为了提高教学效果,除了在教学中多利用挂图、标本、模型、化学产品和化学原料等直观教具外,幻灯的教学方法也是不可缺少的部分。不只在课内,即在课外活动里,在晚会的活动中,对幻灯的利用也是值得考虑的。由于它与其他直观教具有些不同,除了应该注意放映的技术外,还特别需要仔细慎重的选择幻灯片子,以便与教学密切的配合起来。但是目前市售化学教学片还是很少,能配合在教学上的更是寥寥无几。据我所知,许多学校虽有幻灯机,由于缺乏幻灯片,因此幻灯机利用率极差,在利用幻灯的教学上也就没有能发挥它应起的作用。
In order to improve teaching effectiveness, in addition to making more use of visual aids such as wall charts, specimens, models, chemical products and chemical raw materials in teaching, slide teaching methods are also an indispensable part. Not only in the class, that is, in extracurricular activities, the activities of the party, the use of the slide is also worth considering. Because it is somewhat different from other visual teaching aids, in addition to the technology that should be paid attention to, there is a particular need for careful selection of slides in order to be closely aligned with teaching. However, there are still a few chemical teaching films available on the market at present, and few can be used in teaching. As far as I know, although many schools have slide projectors, due to the lack of slideshows, their slide projector utilization is extremely poor and their use of slideshows can not play its due role.