...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Education and Practice >Analyzing of Students’ Misconceptions on Acid-Base Chemistry at Senior High Schools in Medan
【24h】

Analyzing of Students’ Misconceptions on Acid-Base Chemistry at Senior High Schools in Medan

机译：棉兰市高中学生对酸碱化学的误解分析

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Students’ misconceptions on acid-base chemistry at senior high schools in Medan were investigated in this study. The study involved 179 of XI grade students from six different schools in Medan selected based on their accreditation. Students’ misconceptions on acid base chemistry topic were identified and collected by giving a valid test developed by researcher to the students in form of Acid-Base Chemistry Misconception Test containing 12 open-ended multiple choices. The data collected were processed and categorized based on students’ achievement and students’ understanding. It was revealed that students had fifteen misconceptions and eleven submisconceptions. From five main concepts investigated in acid-base chemistry, percentage of students’ responses categorized as specific misconceptions are acid and base concepts (22.07%), pH and pOH concepts (43.58%), ionization degree and equilibrium constant concepts (8.94%), acid-base indicators concept (6.15%), and acid-base titration concept (9.50%). The study also revealed four main students’ problems in understanding acid-base chemistry namely fragmentation of students’ understanding, problems with symbols and mathematical formula, difficulties in understanding the context in acid-base chemistry, and problems in generalization. Keywords: students’ misconception, acid-base chemistry, students’ achievement, students’ understanding
机译：这项研究调查了学生对棉兰高中酸碱化学的误解。该研究涉及棉兰六所不同学校的179名XI年级学生，这些学生是根据他们的资格认证选定的。通过对研究者进行的有效测试，以酸碱化学误解测试的形式向学生提供有效的测试，以识别和收集学生对酸碱化学主题的误解，该测试包含12个开放式的多项选择。根据学生的成绩和学生的理解程度对收集到的数据进行处理和分类。据透露，学生有十五个误解和十一个误解。从酸碱化学研究的五个主要概念中，被归类为特定误解的学生反应百分比为酸和碱概念（22.07％），pH和pOH概念（43.58％），电离度和平衡常数概念（8.94％），酸碱指标概念（6.15％）和酸碱滴定概念（9.50％）。该研究还揭示了四个主要的学生在理解酸碱化学方面的问题，即学生理解的分散性，符号和数学公式的问题，在理解酸碱化学的上下文方面的困难以及泛化问题。关键字：学生的误解，酸碱化学，学生的成绩，学生的理解

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号