Ward Phillip, Kim Insook, Ko Bomna, Li Weidong
a The Ohio State University.
Res Q Exerc Sport. 2015 Jun;86(2):130-9. doi: 10.1080/02701367.2014.987908. Epub 2014 Dec 24.
The purpose of this study was to examine the efficacy of a content knowledge (CK) workshop on the enacted pedagogical content knowledge (PCK) of teachers and in turn the effects on student learning.
A quasiexperimental design was used to examine 4 questions: (a) How does student learning differ as a function of PCK? (b) How does teachers' selection of tasks differ in teaching as a function of CK? (c) How does teachers' representation of tasks differ in teaching as a function of CK? (d) How does teachers' adaptation of tasks differ in teaching as a function of CK? In examining student learning, 2 statistical analyses were employed using correct trials and incorrect trials as dependent measures, respectively. Analyses of variance were conducted examining the effects of the intervention on students' percentage of correct or incorrect trials. The analyses consisted of independent variables, including teachers as a block, treatment, class nested within conditions, gender, skill levels, and 2-way interactions among treatment conditions, gender, and skill levels.
A statistically significant effect was reported for both analyses. Effect sizes were .63 and .67, indicating a moderate-to-high practical difference between groups in favor of the experimental condition. Large effect size differences (>2.0) were found for teacher PCK behaviors. There were no interaction effects.
Our findings show that the enacted PCK of a teacher can be changed from immature to mature as a function of learning CK and that this change has a significant and meaningful impact on student learning.
本研究旨在考察内容知识(CK)工作坊对教师所运用的学科教学知识(PCK)的效果,进而探究其对学生学习的影响。
采用准实验设计来研究4个问题:(a)学生学习如何因PCK的不同而产生差异?(b)教师在教学中对任务的选择如何因CK的不同而产生差异?(c)教师在教学中对任务的呈现如何因CK的不同而产生差异?(d)教师在教学中对任务的调整如何因CK的不同而产生差异?在考察学生学习时,分别采用正确试验和错误试验作为因变量进行了两种统计分析。进行方差分析以检验干预对学生正确或错误试验百分比的影响。分析中的自变量包括作为一个区组的教师、处理、嵌套在条件中的班级、性别、技能水平,以及处理条件、性别和技能水平之间的双向交互作用。
两项分析均报告了具有统计学意义的效果。效应量分别为0.63和0.67,表明两组之间存在中度到高度的实际差异,有利于实验条件。在教师的PCK行为方面发现了较大的效应量差异(>2.0)。不存在交互作用效应。
我们的研究结果表明,教师所运用的PCK可以随着对CK的学习从不成熟转变为成熟,并且这种变化对学生学习具有显著且有意义的影响。