中学化学“电解质溶液”核心概念及其学习进阶研究

发布时间：2018-06-04 11:42

本文选题：核心概念 + 学习进阶　；参考：《江西师范大学》2015年硕士论文

【摘要】：笔者结合2014年全国新课标高考化学考试大纲对“电解质溶液”所作的内容与要求,对中学化学教科书(人教版)中所涉及的相关基本概念和基本理论进行分学段整理,通过研读《初中化学课程标准(修订稿)》和《普通高中化学课程标准》中所涉及的相关内容标准,将整理出的相关基本概念和基本理论通过概念图进行梳理,从而概括出中学化学“电解质溶液”领域的核心概念有3个,分别是:电离、离子反应、勒夏特列原理。笔者通过进一步分析课标、考纲与学生对“电解质溶液”领域相关内容的迷思概念的已有研究,并进行梳理,确定出相应核心概念的学习进阶。在此基础上,笔者对中学化学“电解质溶液”核心概念的学习进阶进行实证研究。笔者以高一必修1“离子反应”教学内容为例,对该内容设计两份教学方案,第一份按照传统的教学模式进行设计,第二份参照已规划的学习进阶围绕核心概念进行设计。在高一第一学期,笔者按照第一份教学方案在实验班和对照班进行教学。在第二学期初,笔者在实验班和对照班中对这一教学内容进行前测,后利用学生的晚自习时间在对照班中继续参照第一份教学方案进行第二次教学,在实验班中使用第二份教学方案进行教学,这一章节内容授课后对两个班进行后测。通过将两个班级的前后测成绩进行比较,并作分析得出“电解质溶液”相关核心概念的学习进阶对学生的学、教师的教具有促进作用。
[Abstract]:According to the contents and requirements of "electrolyte solution" in the outline of the 2014 National New Curriculum Standard College entrance examination, the author collates the relevant basic concepts and theories involved in the middle school chemistry textbook (personal Education Edition). By studying the relevant content standards of Chemistry Curriculum Standard of Junior Middle School (revised draft) and Chemistry Curriculum Standard of General Senior High School, the related basic concepts and theories are sorted out through concept map. There are three core concepts in the field of "electrolyte solution" in middle school chemistry, which are ionization, ion reaction and Leichtleigh principle. Through further analysis of curriculum standard, examination outline and students' existing research on the misconceptions of the relevant contents in the field of "electrolyte solution", the author has sorted out the corresponding core concepts and determined the learning level of the corresponding core concepts. On this basis, the author makes an empirical study on the core concept of "electrolyte solution" in middle school chemistry. Taking the "ion reaction" teaching content as an example, the author designs two teaching schemes for this content. The first is designed according to the traditional teaching mode, and the second is designed according to the core concept of the planned learning step. In the first semester of Senior one, the author carries on the teaching in the experimental class and the control class according to the first teaching plan. At the beginning of the second semester, the author conducted a pre-test of the teaching content in the experimental class and the control class, and then used the students' evening self-study time to continue to carry out the second teaching in the control class with reference to the first teaching plan. The second teaching plan is used in the experimental class. By comparing the results of the two classes before and after the test, it is concluded that the advanced study of the core concepts related to "electrolyte solution" can promote the students' learning and teachers' teaching aids.
【学位授予单位】：江西师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：G633.8

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