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在卤素的复习教学过程中,我通过对比,分析引导学生总结出学习元素化合物知识的一般方法,发现卤素各元素的单质和化合物发生化学反应的一些规律,下面谈谈我是怎样用三步法复习卤素的。 第一步:为了使学生进一步掌握和巩固卤素这一章必备的化学知识和技能。我按照结构
During the review of halogens, I contrasted and analyzed the general methods that lead students to summarize the knowledge of learning about compound elements and found some laws of the chemical reactions between the elements and compounds of halogens. Let’s talk about how I use the three-step method. Review halogen. The first step: In order to enable students to further grasp and consolidate the necessary chemical knowledge and skills of halogen. I follow the structure