Global learning partnerships in the Café: peer feedback as a formative assessment tool for animation students

This paper reports on a global learning partnership using the Café: the collaborative application for education as an e-learning environment within the Facebook framework, for first-year animation students at the University of South Australia (USA) in Australia and Nanyang Technological University in Singapore. “The Café” has been designed based on five principles of user interface design – visibility, usability, relevance, accessibility, and interactivity – and aims to provide institutions with an established, structured, and dedicated e-learning environment that meets the needs of modern-day tertiary students and teaching staff. From July to November in 2013, 71 students participated within the e-learning environment. Students submitted work-in-progress imagery related to major assignments, and provided feedback and critiques to their local and global peers. A post-semester survey provided students with the opportunity to critically reflect on the learning experience. The results are discussed in light of the use of peer feedback as a formative assessment tool.     

三片羽毛

从前有个国王,他有三个儿子。老大和老二聪明伶俐,小儿子却很单纯,不爱说话,他们管他叫缺心眼。国王年纪大了,身体虚弱,想到身后之事,觉得难以确定究竟由哪个儿子来继承     

A Critique of Human Capital Formation in the U.S. and The Economic Returns to Sub-Baccalaureate Credentials

This article explores the history of human capital in the United States in relation to scholarly study of the private economic returns to higher education. The focus of this study is the private economic returns to subbaccalaureate education in two-year community and technical colleges. This article argues that although there are some beneficial private rates of return to a subbaccalaureate credential in relation to having no higher education, the benefits are small and often insignificant, especially in relation to the rates of return to a baccalaureate degree. Thus, subbaccalaureate credentials are devalued economic commodities that perpetuate the inequality of U.S. society and the labor market and, therefore, subbaccalaureate education should not be seen as a means to democratize higher educational access, but more as an advanced type of secondary schooling.     

Camila,the earth,and the sun: Constructing an idea as shared intellectual property

Recent research has challenged traditional assumptions that scientific practice and knowledge are essentially individual accomplishments, highlighting instead the social nature of scientific practices, and the co‐construction of scientific knowledge. Similarly, new research paradigms for studying learning go beyond focusing on what is “in the head” of individual students, to study collective practices, distributed cognition, and emergent understandings of groups. These developments require new tools for assessing what it means to learn to “think like a scientist.” Toward this goal, the present case study analyzes the discourse of a 6th‐grade class discussing one student's explanation for seasonal variations in daylight hours. The analysis identifies discourse moves that map to disciplinary practices of the social construction of science knowledge, including (1) beginning an explanation by reviewing the community's shared assumptions; (2) referencing peers' work as warrants for an argument; and (3) building from isolated ideas, attributed to individuals, toward a coherent situation model, attributed to the community. The study then identifies discourse moves through which the proposed explanation was taken up and developed by the group, including (4) using multiple shared representations; (5) leveraging peers' language to clarify ideas; and (6) negotiating language and representations for new, shared explanations. Implications of this case for rethinking instruction, assessment, and classroom research are explored. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47:619–642, 2010     

Stability and change in early childhood classroom interactions during the first two hours of a day

Early childhood classrooms support children's learning in a variety of ways. Of critical importance are the interactions teachers have with children. The type and quality of classroom interactions vary and can be grouped into three domains: instructional, organizational, and emotional. The purpose of this study is to examine the extent to which the quality of classroom interactions is stable over time and the extent to which certain types of interactions (e.g., organizational) set the stage for other types of interactions (e.g., instructional) during the first two hours of a typical pre-k day. Classrooms (n = 693) were observed during four contiguous observation cycles (20 min for observation, 10 min for ratings) using the Classroom Assessment Scoring System. Stability estimates from autoregressive models showed the quality of classroom interactions was highly stable. Latent difference score models were then fit to determine how these domains of teacher interactions related with one another over time. Contrary to hypotheses, higher levels of Classroom Organization and Emotional Support were not related to positive changes in Instructional Support. However, the final model indicated that Classroom Organization and Emotional Support were positively related to one another over time. That is, higher levels of Classroom Organization were related to higher levels of Emotional Support at the next observation cycle and vice versa. Implications for the understanding of classroom interactions and the measurement of interactions are discussed.     

Validation of Accelerometer-Based Energy Expenditure Prediction Models in Structured and Simulated Free-Living Settings

This study compared accuracy of energy expenditure (EE) prediction models from accelerometer data collected in structured and simulated free-living settings. Twenty-four adults (mean age 45.8 years, 50% female) performed two sessions of 11 to 21 activities, wearing four ActiGraph GT9X Link activity monitors (right hip, ankle, both wrists) and a metabolic analyzer (EE criterion). Visit 1 (V1) involved structured, 5-min activities dictated by researchers; Visit 2 (V2) allowed participants activity choice and duration (simulated free-living). EE prediction models were developed incorporating data from one setting (V1/V2; V2/V2) or both settings (V1V2/V2). The V1V2/V2 method had the lowest root mean square error (RMSE) for EE prediction (1.04–1.23 vs. 1.10–1.34 METs for V1/V2, V2/V2), and the ankle-worn accelerometer had the lowest RMSE of all accelerometers (1.04–1.18 vs. 1.17–1.34 METs for other placements). The ankle-worn accelerometer and associated EE prediction models developed using data from both structured and simulated free-living settings should be considered for optimal EE prediction accuracy.