摘要
化学作为一门以实验为基础的自然学科,实验在化学和化学教学中都具有重大作用。通过Na_2O_2与H_2O反应后使酚酞溶液变红色后褪去的实验现象的探究,让学生从发现问题出发,寻找和探索解决问题的方法,培养学生发现问题、分析问题、推理并解决问题的能力。
Chemistry is a natural subject based on experiments,and experiments play an important role in chemistry and chemistry teaching.By exploring the phenomena of phenolphthalein solution fading from red after the reaction of Na2O2 with H2O,the students can start from finding problems firstly.Then they find and explore solutions to problems.finally,it cultivates their abilities of finding,analyzing,reasoning and solving problems.
作者
迟佳姝
刘大为
CHI Jiashu;LIU Dawei(11 High School of Changchun,Changchun Jinlin 130000,China)
出处
《吉林省教育学院学报》
2019年第4期107-111,共5页
Journal of Jilin Provincial Institute of Education
关键词
过氧化钠
酚酞
实验现象
问题
推理
解决
sodium peroxide
phenolphthalein
experimental phenomena
problems
reasoning
solution
