元认知策略与中学生化学成绩和记忆

Theresa M. Udofia, Uduak P. Edem
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引用次数: 1

摘要

本研究考察了元认知策略(KWL)对尼日利亚阿夸伊博姆州乌约市中学生化学学业成绩和记忆的影响。提出了两个研究问题,并提出了两个假设来指导研究。本研究设计为前测后测准实验。在阿夸伊博姆州Uyo市的15所公立中学中,随机选择了两所进行研究。从选定的学校抽取了100名SS11学生的样本,包括47名男生和57名女生,来自两个完整的班级。采用化学成就测试(CAT)和化学保留测试(CRT)两种经过验证的仪器进行数据采集,每种仪器共25项。采用重测法测定CAT和CRT的信度系数。采用Pearson积矩相关(PPMC)对所得数据进行分析,CAT的信度系数为0.81,CRT的信度系数为0.77。采用均数和标准差回答研究问题,采用协方差分析(ANCOVA)检验假设,显著性水平为0.05。结果表明,使用KWL教学法和说明性教学法的化学学生在学习成绩和记忆分数上存在显著差异。建议化学教师在教学过程中使用Know- What和Learn元认知策略,使教与学更具参与性、自我监控和自我评价,从而加深对化学概念的理解和记忆。关键词:元认知策略,知道-什么和学习,说说性,化学成就,自我监控,保留DOI: 10.7176/CMR/11-3-04出版日期:2019年3月31日
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Meta-cognitive Strategy and Secondary School Students’ Achievement and Retention in Chemistry
The study examined the effect of meta-cognitive strategy (KWL) and secondary school students’ academic achievement and retention in chemistry in Uyo metropolis in Akwa Ibom state, Nigeria. Two research questions were raised and  two hypotheses formulated to guide the study. The design for the study was a pretest posttest quasi-experimental.  Two out of fifteen public secondary schools in Uyo metropolis of Akwa Ibom state were randomly selected for the study.  A sample of one hundred (100) SS11 students consisting of 47 boys and 57 girls from  two intact classes were drawn from the selected schools. Two validated instruments tagged chemistry achievement test (CAT) and chemistry retention test (CRT) containing 25 items each were used to collect data. The reliability co-efficient of CAT and CRT were determined using test-retest method. The data obtained were analysed using Pearson Product Moment Correlation (PPMC) and the reliability coefficients of 0.81 for CAT and 0.77 for CRT were obtained respectively. Mean and standard deviation were used to answer research questions and  analysis of covariance (ANCOVA)  was used to test hypotheses at 0.05 level of significance. The findings showed a significant difference in achievement and retention scores of chemistry students taught alkanols using KWL and those taught with expository strategy. It is recommended that chemistry teachers use Know- What and  Learn meta-cognitive strategy during instructional delivery to make teaching and learning more participatory, self monitoring and self evaluating so as deeper to understanding and retention of chemistry concepts. Keywords : Meta-cognitive strategy, Know- What and Learn, expository, chemistry Achievement, self monitoring, Retention DOI : 10.7176/CMR/11-3-04 Publication date :March 31 st 2019
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