Introduction to the Special Issue on Immigration: Expanding Definitions and Examining New Contexts     

Stella M. Flores  Christopher P. Loss 《Peabody Journal of Education》2013,88(4):403-405

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Rethinking pedagogy for a digital age: designing for twenty-first century learning     

Stella Lee 《Open Learning》2013,28(2):174-176

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Yeast of Change     

Stella Craft Tremble 《The Educational forum》2013,77(4)

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Relationship between accuracy and complexity when learning underarm precision throwing     

Maria Stella Valle  Luciano Lombardo  Matteo Cioni 《European Journal of Sport Science》2018,18(9):1217-1225

Learning precision ball throwing was mostly studied to explore the early rapid improvement of accuracy, with poor attention on possible adaptive processes occurring later when the rate of improvement is reduced. Here, we tried to demonstrate that the strategy to select angle, speed and height at ball release can be managed during the learning periods following the performance stabilization. To this aim, we used a multivariate linear model with angle, speed and height as predictors of changes in accuracy. Participants performed underarm throws of a tennis ball to hit a target on the floor, 3.42 m away. Two training sessions (S1, S2) and one retention test were executed. Performance accuracy increased over the S1 and stabilized during the S2, with a rate of changes along the throwing axis slower than along the orthogonal axis. However, both the axes contributed to the performance changes over the learning and consolidation time. A stable relationship between the accuracy and the release parameters was observed only during S2, with a good fraction of the performance variance explained by the combination of speed and height. All the variations were maintained during the retention test. Overall, accuracy improvements and reduction in throwing complexity at the ball release followed separate timing over the course of learning and consolidation.  相似文献   

Improving mathematics instruction through lesson study: a theoretical model and North American case   总被引：1，自引：0，他引：1  

Catherine C. Lewis  Rebecca R. Perry  Jacqueline Hurd 《Journal of Mathematics Teacher Education》2009,12(4):285-304

This article presents a theoretical model of lesson study, an approach to instructional improvement that originated in Japan. The theoretical model includes four lesson study features (investigation, planning, research lesson, and reflection) and three pathways through which lesson study improves instruction: changes in teachers’ knowledge and beliefs; changes in professional community; and changes in teaching–learning resources. The model thus suggests that development of teachers’ knowledge and professional community (not just improved lesson plans) are instructional improvement mechanisms within lesson study. The theoretical model is used to examine the “auditable trail” of data from a North American lesson study case, yielding evidence that the lesson study work affected each of the three pathways. We argue that the case provides an “existence proof” of the potential effectiveness of lesson study outside Japan. Limitations of the case are discussed, including (1) the nature of data available from the “auditable trail” and (2) generalizability to other lesson study efforts.

Catherine C. LewisEmail:

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IRT Approaches to Modeling Scores on Mixed-Format Tests     

Won-Chan Lee  Stella Y. Kim  Jiwon Choi  Yujin Kang 《Journal of Educational Measurement》2020,57(2):230-254

This article considers psychometric properties of composite raw scores and transformed scale scores on mixed-format tests that consist of a mixture of multiple-choice and free-response items. Test scores on several mixed-format tests are evaluated with respect to conditional and overall standard errors of measurement, score reliability, and classification consistency and accuracy under three item response theory (IRT) frameworks: unidimensional IRT (UIRT), simple structure multidimensional IRT (SS-MIRT), and bifactor multidimensional IRT (BF-MIRT) models. Illustrative examples are presented using data from three mixed-format exams with various levels of format effects. In general, the two MIRT models produced similar results, while the UIRT model resulted in consistently lower estimates of reliability and classification consistency/accuracy indices compared to the MIRT models.  相似文献   

Tharp's Funnel: A Conceptual Framework for Teaching about Religious Pluralism in Potok's My Name is Asher Lev and Zakiyyah's If I Should Speak     

Tonya Huber-Warring  Stella R. Bergman 《Multicultural Perspectives》2013,15(4):48-53

If teachers are to transcend mono-cultural borders and advocate for social justice in liberatory, critical pedagogical practice, then they must understand the relational and causative ethnogenetic layers of experience for students in the global community. Specifically, accommodating religious pluralism is a challenge facing educators today. Immersing themselves and their students in the lives of others through literary narratives provides one immediate and accessible strategy for exploring ethnogenetic experiences and crossing monocultural borders.  相似文献   

Intercultural adjustment and friendship dialectics in international students: A qualitative study     

Jean Hotta  Stella Ting-Toomey 《Int J Intercult Relat》2013

Despite the accelerating increase of international students on American campus, there is still a lack of in-depth understanding of how these individuals make sense of their adjustment journey or how they construct meaning concerning their friendship development experience. Existing adjustment research tended to focus primarily on the motivational goals of adjustment or the type of friendship network patterns (e.g., host national network, co-national network, or multi-national network) but did not probe deeper into the narratives of international students’ identity-change adjustment processes or the quality of their friendship networks. Using identity negotiation theory as a guide, this study utilized an interpretive methodology to examine the adjustment narratives and friendship stories of 20 international students. The findings revealed three themes: a variety of intercultural adjustment patterns and with a predominant upward trend or M-shaped adjustment trend, the role of cultural expectancy and personal time sense in intercultural friendship development, and identity shock issues and friendship dialectics. The findings have implications for the study of intercultural adjustment process and friendship development pattern especially concerning the intercultural friendship dialectics of feeling visible versus invisible, communication openness versus closedness, and feeling like a guest versus feeling like an alien.  相似文献   

Hyperactive children: A rational approach to medication     

Stella Chess 《The Urban Review》1972,5(3):33-35

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A microcosm of the biomedical research experience for upper-level undergraduates          下载免费PDF全文

Hurd DD 《CBE life sciences education》2008,7(2):210-219

The skill set required of biomedical researchers continues to grow and evolve as biology matures as a natural science. Science necessitates creative yet critical thinking, persuasive communication skills, purposeful use of time, and adeptness at the laboratory bench. Teaching these skills can be effectively accomplished in an inquiry-based, active-learning environment at a primarily undergraduate institution. Cell Biology Techniques, an upper-level cell biology laboratory course at St. John Fisher College, features two independent projects that take advantage of the biology of the nematode Caenorhabditis elegans, a premier yet simple model organism. First, students perform a miniature epigenetic screen for novel phenotypes using RNA interference. The results of this screen combined with literature research direct students toward a singe gene that they attempt to subclone in the second project. The biology of the chosen gene/protein also becomes an individualized focal point with respect to the content of the laboratory. Progress toward course goals is evaluated using written, oral, and group-produced assignments, including a concept map. Pre- and postassessment indicates a significant increase in the understanding of broad concepts in cell biological research.  相似文献