改进化学符号、化学公式和化学方程式书写问题的行动研究

Dula De
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摘要

目的:研究人员有兴趣评估和提高Nekemte师范学院多面手重点二年级学生对化学符号、化学公式和化学方程的总体理解,这些是任何人开始学习这门学科的基本元素。方法:本研究采用定性与定量相结合的研究方法,在研究过程中通过问卷调查、课堂观察、态度前后测试和笔试等方式收集数值和非数值数据。作为数据的类型和来源,本研究仅采用原始数据。我们有意使用所有人群作为样本(两个部分共98名学生)。对于行动研究的实施,我们首先制定行动计划,应用干预措施,分析变化并报告结果。结果:根据我们的零假设,从态度测试(问卷)和笔试(包括干预前和干预后)中可以观察到干预后的渐进式变化。在基线数据问卷的15个项目中,几乎79.5%的受访者不同意评估学生对化学符号,化学公式和化学方程的背景的项目1-11(除了项目5),学生对询问学生对化学语言基本要素的兴趣的项目12-15提出了很高的兴趣(项目12和13的最高同意率为93.88%)。干预后,除了在所有干预期间进行的观察外,两项后测均显示出相关的进步数字。对于态度测试分析,几乎相反的反应记录为一致反应(平均为71.93%),对于笔试结果分析,p (0.05) t统计量大于t临界,即化学
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Improving the Problems of Writing Chemical Symbols, Formulae and Chemical Equations an Action Research
Objective: The researchers interested to assess and improve the general understanding of Generalist Focus Year II students in Nekemte College of Teacher education on chemical symbols, chemical formulae and chemical equations which are the fundamental elements of chemistry for anyone to begin learning this subject. Methods: The study was both qualitative and quantitative type of research, because both numerical and non-numerical data were collected during the study through questionnaire, classroom observation, pre- and post- attitude tests and written tests. As type and source of data, the study used only primary. We used all the population as samples (totally 98 students in both sections) purposely. For the implementation of the action research, we first prepared action plan, applied the interventions, analyzed the changes and reported the results. Results: Based on our null hypothesis, from both attitude tests (questionnaire) and written tests (for both pre-and post-) there is progressive change observed after interventions. From the base line data questionnaire of 15 items, almost 79.5 % of the respondents disagreed for items 1-11 (except item 5) which are assessing the students background on chemical symbols, chemical formulae and chemical equations and very high interest was raised from the students on items 12-15 (highest agreement for both item 12 & 13 by 93.88 % response) which were asking students’ interest to learn the basic elements of chemistry languages. After interventions, both post-tests showed correlatively progressive figure in addition to the observations conducted during all interventions. For the attitude test analysis almost, the reverse responses were recorded with agreement response (in average 71.93 %) and for the written test result analysis at p (0.05) the t-statistic is greater than t-critical in all the three cases i.e. chemical
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