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实验探究是化学教学的重要内容和教学方式,尤其是对刚接触化学的学生来说,实验就是开启化学大门的钥匙,激发学生学习化学兴趣的重要途径。所以,教师要努力改进实验,确保实验的顺利进行。对于教材中设计有缺陷的实验,教师要大胆探索,改进方法,使学生能看到真实的现象,并能通过实际现象,作出科学的分析和正确的结论。对于教材一些操作比较复杂或者不易成功的实验进行改进,可以节约课堂教学时间,提高教学效率。下面结合人教版初中
Experimental exploration is an important part of chemistry teaching and teaching methods. Especially for students who have just come into contact with chemistry, experiment is the key to opening the door to chemistry and stimulating students’ important interest in learning chemistry. Therefore, teachers should strive to improve the experiment to ensure the smooth progress of the experiment. For the teaching of design flaws in the experiment, teachers should boldly explore and improve the method so that students can see the real phenomenon, and through the actual phenomenon, make a scientific analysis and the correct conclusion. Some of the teaching materials for the operation of more complicated or not easy to improve the experiment, you can save classroom teaching time and improve teaching efficiency. The following combination of PEP junior high school