论文部分内容阅读
对于气体性质的实验,传统的方法需要用到很多个洗气瓶,消耗大量的药品和时间。不适合多个班级的连续教学演示,更不适合新课标下的学生分组探究。所以,时于有毒气体性质实验,动画模拟或实验录像就成为教师的首选。为了突出化学的学科特征,为了实施探究式教学,为了培养学生学习化学的兴趣,教师无论如何也要演示好实验,尽可能地让学生动手实验,切不可将实验虚拟化。为了达到此目的,笔者自制了一套气体性质探究之节约化仪器。该套实验仪器能够满足中学大多数气体性质的实验教学需要。其制作方便,成本低廉,操作简单;用少量的试剂便可
For experiments on gas properties, the traditional method used many scrubbers, consuming a large amount of medication and time. Not suitable for multiple classes of continuous teaching demonstrations, but not suitable for students under the new curriculum to explore groups. So, when the toxic gas experiment, animation simulation or experimental video became the teacher’s first choice. In order to highlight the characteristics of chemistry, in order to carry out inquiry-based teaching, in order to cultivate the interest of students in learning chemistry, teachers should demonstrate experiment anyway and try their best to make the experiment as possible as possible without virtualizing the experiment. In order to achieve this goal, I made a self-made instrument of gas exploration of conservation equipment. This set of experimental apparatus can meet the experimental teaching needs of most gas properties in high school. The production of convenient, low cost, easy to operate; with a small amount of reagent can be