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| 基于认识化学正向价值的教学实践——以“二氧化碳*”为例 | |
| 引用本文： | 李焱,孙成林,许晓辉.基于认识化学正向价值的教学实践——以“二氧化碳*”为例[J].化学教育,2021,42(5):20-25. |
| 作者姓名： | 李焱 孙成林 许晓辉 |
| 作者单位： | 1.石家庄市教育科学研究所 河北石家庄 050000; 2.保定市徐水区大王店中学 河北保定 071000; 3.石家庄市石门实验学校 河北石家庄 050000 |
| 基金项目： | *本节课由石家庄市初中化学工作坊团队设计,由石家庄市石门实验许晓辉老师执教,在2018年河北省优质课评比中获得一等奖第二名 |
| 摘 要： | 模拟大型科普求真类节目《是真的吗？》创设学习氛围;通过基于生活生产实际的“日常灭火可否用N2代替CO2”“深海捕获CO2可否调控温室效应”“石油采矿业中,向油井下注射1吨CO2可否增产原油3~5吨”“用石灰水可否保鲜鸡蛋”等4个核心问题及3个真假难辨的小问题,引导学生从化学的正向视角深刻认识二氧化碳的性质;利用移动磁贴板设计板书,引导学生经历并建构结构化知识体系。 |
| 关 键 词： | 二氧化碳 正向价值 科学求证 知识结构化 温室效应 |
Teaching of Carbon Dioxide Based on Positive Value of Chemistry |
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| LI Yan,SUN Cheng-Lin,XU Xiao-Hui.Teaching of Carbon Dioxide Based on Positive Value of Chemistry[J].Journal of Chemical Education,2021,42(5):20-25. | |
| Authors: | LI Yan SUN Cheng-Lin XU Xiao-Hui |
| Affiliation: | 1. Shijiazhuang Institute of Educational Sciences, Shijiazhuang 050000, China; 2. Dawangdian Middle School, Xushui District, Baoding 071000, China; 3. Shijiazhuang Shimen Experimental School, Shijiazhuang 050000, China |
| Abstract: | This paper simulated large-scale science popularization and truth seeking programs Is it true to create learning atmosphere.Based on the reality of daily life and production,“Can N2 be used to replace CO2in daily fire fighte”,“Can regulate the greenhouse effect through CO2capture in deep sea”and“In the oil mining industry,can a ton of CO2be injected into an oil well to increase crude oil production by 3~5tons”and“Can we keep eggs fresh with lime water”and other three small questions,which are difficult to distinguish,guide students to deeply understand the nature of carbon dioxide from the positive perspective of chemistry;Using mobile magnetic pasteboard to design blackboard writing,guide students to experience and construct structured knowledge system. |
| Keywords: | carbon dioxide positive value scientific verification knowledge structure greenhouse effect |
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