Development of a Learning Progression for the Formation of the Solar System     

Julia D. Plummer  Christopher Palma  Alice Flarend  KeriAnn Rubin  Yann Shiou Ong  Brandon Botzer 《International Journal of Science Education》2013,35(9):1381-1401

This study describes the process of defining a hypothetical learning progression (LP) for astronomy around the big idea of Solar System formation. At the most sophisticated level, students can explain how the formation process led to the current Solar System by considering how the planets formed from the collapse of a rotating cloud of gas and dust. Development of this LP was conducted in 2 phases. First, we interviewed middle school, high school, and college students (N?=?44), asking them to describe properties of the current Solar System and to explain how the Solar System was formed. Second, we interviewed 6th-grade students (N?=?24) before and after a 15-week astronomy curriculum designed around the big idea. Our analysis provides evidence for potential levels of sophistication within the hypothetical LP, while also revealing common alternative conceptions or areas of limited understanding that could form barriers to progress if not addressed by instruction. For example, many students' understanding of Solar System phenomena was limited by either alternative ideas about gravity or limited application of momentum in their explanations. Few students approached a scientific-level explanation, but their responses revealed possible stepping stones that could be built upon with appropriate instruction.  相似文献   

‘Does it answer the question or is it French fries?’: an exploration of language supports for scientific argumentation     

María González-Howard  Katherine L. McNeill  Lisa M. Marco-Bujosa  C. Patrick Proctor 《International Journal of Science Education》2013,35(5):528-547

ABSTRACT

Reform initiatives around the world are reconceptualising science education by stressing student engagement in science practices. Yet, science practices are language-intensive, requiring students to have strong receptive and productive language proficiencies. It is critical to address these rigorous language demands to ensure equitable learning opportunities for all students, including English language learners (ELLs). Little research has examined how to specifically support ELL students’ engagement in science practices, such as argumentation. Using case-study methodology, we examined one middle school science teacher's instructional strategies as she taught an argumentation-focused curriculum in a self-contained ELL classroom. Findings revealed that three trends characterized the teacher’s language supports for the structural and dialogic components of argumentation: (1) more language supports focused on argument structure, (2) dialogic interactions were most often facilitated by productive language supports, and (3) some language supports offered a rationale for argumentation. Findings suggest a need to identify and develop supports for the dialogic aspects of argumentation. Furthermore, engaging students in argumentation through productive language functions could be leveraged to support dialogic interactions. Lastly, our work points to the need for language supports that make the rationale for argumentation explicit since such transparency could further increase access for all students.  相似文献   

Children Learning to Explain Daily Celestial Motion: Understanding astronomy across moving frames of reference     

Julia D. Plummer  Kyle D. Wasko  Cynthia Slagle 《International Journal of Science Education》2013,35(14):1963-1992

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The Infoshare Module: Using Collaborative Asynchronous Training to Improve Web Search Skills     

Lucio Teles  Julia Rylands 《Educational Media International》2013,50(3):169-172

Abstract

This article discusses the design, development, and implementation of a collaborative learning environment for online training ‘Infoshare on the Web’ It was designed to teach participants how to use and/or improve their use of Web search engines to access information on the Web. Participants collaborated in completing group tasks using asynchronous communication provided by Simon Fraser's Virtual‐U, a Web‐based environment that supports distance education, information sharing, and training. The module was delivered in four weeks, and participants found both advantages and limitations in the use of asynchronous environments for training.  相似文献   

How Simple is the Simple View of Reading?     

Stefan Gustafson  Christina Samuelsson  Ellinor Johansson  Julia Wallmann 《Scandinavian Journal of Educational Research》2013,57(3):292-308

According to the Simple View of Reading, reading ability can be divided into decoding and language comprehension. In the present study, decoding and comprehension's contribution to reading ability was studied both in children with reading difficulties and in children with typical reading ability. Decoding and comprehension was further divided into sub-components, and the contribution from non-verbal ability and general processing speed was also studied. The results demonstrated that decoding made the largest contribution to reading ability for children with reading difficulties, while language comprehension contributed the most for children with typical reading ability. The contribution of non-verbal ability was not significant, and general processing speed only made a significant contribution to decoding for typical children. The two factors in the Simple View of Reading, decoding and comprehension, together explained less of the variance in reading ability for children with reading difficulties than for children with typical reading ability.  相似文献   

An aristocracy of talent? Describing self and other at an early twentieth‐century high school     

Helen Proctor 《History of education》2013,42(2):247-261

This paper is a reading of early twentieth‐century government high school culture as it was expressed through a twenty‐year run of one Australian high school’s student‐authored magazines. From its first issue the editors of The Parramatta High School Magazine were keen to promote its role in the making of a community. The idea that high school people belonged to a special and exclusive group was reiterated in a number of ways. Writing in the magazines described the features of a shared culture – whiteness, literacy, good taste, rational behaviour – and implicitly defined high school students as different from other categories of people, including non‐English speaking foreigners and ‘the uneducated’. Central to the process of classification and identification were statements of ‘who we are’ and ‘who we are not’ which were grounded in the language of meritocracy, and encompassed particular contemporary understandings of social class, race and gender.  相似文献   

Beyond a unitary conception of pedagogic pace: quantitative measurement and ethnographic experience     

Adam Lefstein  Julia Snell 《British Educational Research Journal》2013,39(1):73-106

English education policy‐makers have targeted classroom time as a key area for regulation and intervention, with ‘brisk pace’ widely accepted as a feature of good teaching practice. We problematise this conventional wisdom through an exploration of objective and subjective dimensions of lesson pace in a corpus of 30 Key Stage 2 literacy lessons from three classrooms in one London school. Systematic classroom observation produced an anomaly: the lessons we experienced as fast‐paced were rated objectively as slowest, and vice‐versa. We contrasted the fastest and slowest episodes in the corpus, demonstrating that for these episodes the accepted measure of pace primarily reflected differences in utterance length. Linguistic ethnographic micro‐analysis of the episodes highlighted predictability, stakes, meaning and dramatic performance as key factors contributing to pace as experienced. We argue, among other claims, that sometimes accelerating pupils' experience—and learning—necessitates slowing down the pace of teaching, and that government calls for urgency may, perversely, make lessons slower.  相似文献   

Women and communication: An introduction to the issues     

Julia T. Wood 《Communication quarterly》2013,61(2):99-100

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The reliability and validity of certain arithmetic tests     

S. C. Garrison  Julia Hodgson 《Peabody Journal of Education》2013,88(6):339-341

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Nurturing lifelong learning in communities through the National University of Lesotho: prospects and challenges     

Julia Preece with contributions from  David Croome  Mankatso Ntene  Nomazulu Ngozwana 《International Journal of Lifelong Education》2013,32(6):713-732

This paper analyses one aspect of a pan-African action research project called ITMUA (Implementing the Third Mission of Universities in Africa). This particular paper draws on the data from that project to explore the National University of Lesotho’s contribution to lifelong learning in its communities. It provides background information on the ITMUA initiative and analyses interview and focus group responses to two case studies in terms of their contribution to lifelong learning. It uses, as its analytical framework, a modified version of Mbigi’s African perspective on the four De Lors’ ‘pillars’, by adding a fifth pillar, courtesy of Torres. The paper argues that community engagement is a two-way process between universities and their wider constituencies with opportunities for mutual lifelong learning. But there are also challenges of understanding and process which must be addressed if the full range of these lifelong learning pillars is to be accommodated within African contexts. The paper provides an introduction to the history of community engagement in Africa as a university mission, followed by a brief discussion of lifelong learning within African perspectives. After describing the particular context of Lesotho, the concept of community service and community engagement in contemporary African contexts introduces the action research project and the case studies. The final part of the paper presents and discusses the research findings.  相似文献