Development and Validation of Measures of Secondary Science Teachers’ PCK for Teaching Photosynthesis     

Soonhye Park  Jeekyung Suh  Kyungwoon Seo 《Research in Science Education》2018,48(3):549-573

This paper describes procedures by which two types of measures of Pedagogical Content Knowledge (PCK) were developed and validated: (a) PCK Survey and (b) PCK Rubric. Given the topic-specificity of PCK, the measures centered on photosynthesis as taught in high school classrooms. The measures were conceptually grounded in the pentagon model of PCK and designed to measure indispensable PCK that can be applied to any teacher, in any teaching context, for the given topic. Because of the exploratory nature of the study, the measures focus on two key components of PCK: (a) knowledge of students’ understanding in science and (b) knowledge of instructional strategies and representations. Both measures have established acceptable levels of reliability as determined by internal consistency and inter-rater agreement. Evidence related to content validity was gathered through expert consultations, while evidence related to construct validity was collected through analysis of think-aloud interviews and factor analyses. Issues and challenges emerging from the course of the measure development, administration, and validation are discussed with strategies for confronting them. Directions for future research are proposed in three areas: (a) relationships between PCK and teaching experiences, (b) differences in PCK between science teachers and scientists, and (c) relationships between PCK and student learning.  相似文献   

Spatial/Visual Properties of Zoo Exhibition     

Jean Wineman  Yoon Kyung Choi 《Curator: The Museum Journal》1991,34(4):304-315

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“I am well-cooked food”: survival strategies of North Korean female border-crossers and possibilities for empowerment     

Sung Kyung Kim 《Inter-Asia Cultural Studies》2013,14(4):553-571

Abstract

More than the half the people who cross the North Korea–China border are women, with most leaving home to seek food, economic benefits and a more comfortable life. From the human rights perspective, it is clear that the dangerous nature of their journeys across the border and their illegal status in China place them in a very vulnerable position with regard to human trafficking and many types of sexual and physical violence. However, some women voluntarily and strategically use migration, marriage and gender as arenas of agency through which to improve their lives and empower themselves. This paper aims to reveal the complexity of these experiences, which occur where specific forms of gender, intimacy and mobility meet. In doing so, I hope to argue for the possibility of agency beyond an overly simplified victim discourse of North Korean border-crossing. I draw on ethnographic fieldwork in South Korea and China to reveal the trajectories of North Korean female border-crossers who developed survival strategies, and employed their gender and sexuality to skilfully use marriage-migration for their own purposes, empowering them to settle or keep moving on to better places. This instrumental orientation to empowerment worked alongside a more normative orientation to helping their “blood” families back in their homeland through remittances or through being able to bring along children from previous marriages. They were willing to adopt the role of temporary “wife” in order to be good “daughters,” “sisters” and “mothers” both now and later. In this sense, the North Korean women and their experiences imply an ambivalent approach to marriage and family.  相似文献   

Narratives about the Media,Diet, and Body Image: A Cross-Cultural Comparison between Young Female Adults in the Midwestern United States and South Korea     

Kyung Bo Kim 《Journal of Intercultural Communication Research》2014,43(4):283-303

This paper focuses on analysing college women’s narratives to discover their interpretations of thin ideals and dieting experiences and to compare cultural differences between the USA and Korea. Narrative analysis revealed that US women and Korean women have a different understanding of thin ideals. Both groups experienced social comparisons, social pressure to be thin, and emotional distress regarding appearance. Similarly, they revealed their emotional fluctuations associated with changes in weight. However, there were cultural differences in both groups’ ultimate goals for weight control. Consequently, this study suggests that feelings towards weight control have culturally grounded implications. Future directions are discussed.  相似文献   

Relationships among burnout, social support, and negative mood regulation expectancies of elementary school teachers in Korea     

Mi Y. Kim  Jee Y. Lee  Jinsook Kim 《Asia Pacific Education Review》2009,10(4):475-482

The purposes of this study are as follows: (1) to determine whether burnout among elementary school teachers in Korea differs on selected demographic variables, (2) to investigate the relationship between burnout and negative mood regulation expectancies, as an internal variable, and social support, as an external variable, and (3) to examine the relative effects of these two variables on burnout. As regards burnout differences according to grades under their charge, upper-grade teachers reported experiencing a greater degree of burnout than lower-grade teachers. In particular, a significant difference was found in depersonalization. With respect to the relationships among burnout, social support, and negative mood regulation expectancies, perceived social support in general was associated with a lowered degree of burnout, while negative mood regulation expectancies correlated negatively with burnout. Furthermore, negative mood regulation expectancies, as an internal variable, affected burnout more than social support, as an external variable. This finding suggests that burnout can be alleviated by controlling negative mood regulation expectancies, and therefore, intervention efforts, such as counseling, continuing education, or training programs designed to enhance teachers’ negative mood regulation expectancies, could benefit teachers in reducing their burnout.  相似文献   

Enhancing early numeracy skills with a tablet-based math game intervention: a study in Tanzania     

Lee  Hye Kyung  Choi  Ahram 《Educational technology research and development : ETR & D》2020,68(6):3567-3585

Educational technology research and development - The study presents results of a tablet-based math game intervention to enhance early numeracy skills of children in Tanzania. Standard level 1...  相似文献   

Estimating Classification Accuracy and Consistency Indices for Multiple Measures with the Simple Structure MIRT Model     

Seohee Park  Kyung Yong Kim  Won-Chan Lee 《Journal of Educational Measurement》2023,60(1):106-125

Multiple measures, such as multiple content domains or multiple types of performance, are used in various testing programs to classify examinees for screening or selection. Despite the popular usages of multiple measures, there is little research on classification consistency and accuracy of multiple measures. Accordingly, this study introduces an approach to estimate classification consistency and accuracy indices for multiple measures under four possible decision rules: (1) complementary, (2) conjunctive, (3) compensatory, and (4) pairwise combinations of the three. The current study uses the IRT-recursive-based approach with the simple-structure multidimensional IRT model (SS-MIRT) to estimate the classification consistency and accuracy for multiple measures. Theoretical formulations of the four decision rules with a binary decision (Pass/Fail) are presented. The estimation procedures are illustrated using an empirical data example based on SS-MIRT. In addition, this study applies the estimation procedures to the unidimensional IRT (UIRT) context, considering that UIRT is practically used more. This application shows that the proposed procedure of classification consistency and accuracy could be used with a UIRT model for individual measures as an alternative method of SS-MIRT.  相似文献   

The consequences of an overspecialized curriculum     

Thomas T. Suh 《Academic Questions》1997,10(2):83-86

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Applications of Pathfinder Network scaling for identifying an optimal use of first language for second language science reading comprehension     

Kim  Kyung  Clariana  Roy B. 《Educational technology research and development : ETR & D》2019,67(1):85-103

Educational technology research and development - Previous research has shown that the knowledge structure (KS) complexity of a first language (L1) under certain conditions can strongly influence...  相似文献   

Positioning in mathematics education: revelations on an imported theory     

Beth A. Herbel-Eisenmann  David Wagner  Kate R. Johnson  Heejoo Suh  Hanna Figueras 《Educational Studies in Mathematics》2015,89(2):185-204

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