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141.
For American teenagers, social media participation has become a routine feature of everyday life, with ready access to their online networks via smartphones, tablets, and computers. Despite questions and concerns about its effects, relatively few educational researchers have qualitatively explored how students use social media. Complexities such as parental consent, unintended access to non-consented peers, and privacy rights may be deterrents to this research. In this paper, we describe our embedded lesson approach to studying teenagers’ social media use in a high school setting. We designed and delivered three consecutive lessons about social media to two classes. Embedded within these lessons were opportunities to collect data via surveys, focus groups, and observations, along with member checking as a form of quality assurance. This approach rapidly yielded a rich data set, while also giving students the opportunity to articulate and reflect on their social media activities and experiences. 相似文献
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Vanessa Kind 《International Journal of Science Education》2013,35(8):1313-1345
Aspects of chemistry content knowledge held by 265 UK-based pre-service teachers (PSTs) were probed using 28 diagnostic questions in five chemistry concept areas, Particle theory and changes of state, Mass conservation (taught to 11–14-year-olds), and Chemical bonding, Mole calculations and Combustion reactions (taught to 14–16-year-olds). Data were collected over six years from academically able science graduates starting a full-time, university-based teacher education programme of one academic year duration. PSTs in three sub-cohorts (‘chemists', ‘physicists' and ‘biologists' on the basis of their undergraduate degrees) demonstrated similar levels of content knowledge (CK) for Particle theory and changes of state and Mass conservation. Biologists demonstrated statistically significantly weaker understanding than chemists and physicists in Chemical bonding, Mole calculations and Combustion reactions. Forty-four ‘triads' each comprising one chemist, physicist and biologist, matched by academic and personal backgrounds, showed that chemists outperformed biologists and physicists in Chemical bonding and Combustion reactions. The findings suggest that non-chemists' CK is insufficient for teaching these chemistry concepts in high schools, despite their possession of ‘good' Bachelor of Science degrees. These data have implications for science teacher education, including how best to prepare science graduates from diverse backgrounds for teaching specialist science subjects to 11–16-year-olds. 相似文献
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Angelina Russo Jerry Watkins Susan Groundwater‐Smith 《Educational Media International》2013,50(2):153-166
This paper posits that social networking can take a central role in learning in informal environments such as museums, libraries and galleries. It argues that social media offers young people agency previously unavailable in informal learning environments in order to explore complex responses to and participation with cultural content. The paper will consider transformations in digital literacy and the processes by which young learners can connect with knowledge in informal learning environments to become active cultural participants. Die Wirkung sozialer Medien auf informelle Bildung in Museen Dieses Papier postuliert, dass soziale Vernetzung eine zentrale Rolle im Lernen in informellen Umgebungen wie Museen, Bibliotheken und Galerien annehmen kann. Es behauptet, dass soziale Medien jungen Leuten als Agentur in informellen Lernumgebungen dienen können, die zuvor nicht verfügbar sind, um komplexe Antworten zu erkunden und Beteiligung mit kulturellem Inhalt zu erkennen. Die Autoren betrachten Transformationen in digitalen Fähigkeiten und den Prozessen, durch die junge Anfänger sich mit Wissen in anderen informellen Bildungsumgebungen verbinden können, um aktive kulturelle Teilnehmer zu werden. L’impact des medias “sociaux” sur l’apprentissage informel dans les musées Le présent article affirme que la mise en réseau humain peut jouer un rôle central pour l’apprentissage dans des environnements informels comme les musées,les bibliothèques et les galeries. Il avance que les medias “sociaux” offrent aux jeunes des moyens qui n’existaient pas auparavant dans les environnemetns d’apprentissage informels pour permettre d’explorer des réactions complexes et d’interagir avec le contexte culturel. Les auteurs examinent les mutations de la compétence numérique et les processus par lesquels les jeunes apprenants peuvent se brancher sur la connaissance dans des environnements d’apprentissage informels pour devenir des acteurs culturels dynamiques. El impacto de los medios colectivos sobre el aprendizaje informal en los museos Esta artículo postula que la creación de redes humanas puede desempeñar un papel central para el aprendizaje en entornos informales como los museos, las bibliotecas y las galerías. Apunta que los medios sociales ofrecen a los jovenes capacidades que antes no estaban asequibles dentro de los entornos de aprendizaje informal para explorar las respuestas complejas y interagir con el contexto cultural. Los autores consideran las transformaciones en el alfabetismo digital y los procesos a través de los cuales los jovenes alumnos pueden conectarse con los conocimientos dentro de esos entornos informales de aprendizaje para convertirse en actores culturales dinámicos. 相似文献
145.
Vanessa L. Peters Nancy Butler Songer 《Journal of Science Education and Technology》2013,22(5):681-696
This paper reports the results of a three-stage usability test of a modeling tool designed to support learners’ deep understanding of the impacts of climate change on ecosystems. The design process involved repurposing an existing modeling technology used by professional scientists into a learning tool specifically designed for middle school students. To evaluate usability, we analyzed students’ task performance and task completion time as they worked on an activity with the repurposed modeling technology. In stage 1, we conducted remote testing of an early modeling prototype with urban middle school students (n = 84). In stages 2 and 3, we used screencasting software to record students’ mouse and keyboard movements during collaborative think-alouds (n = 22) and conducted a qualitative analysis of their peer discussions. Taken together, the study findings revealed two kinds of usability issues that interfered with students’ productive use of the tool: issues related to the use of data and information, and issues related to the use of the modeling technology. The study findings resulted in design improvements that led to stronger usability outcomes and higher task performance among students. In this paper, we describe our methods for usability testing, our research findings, and our design solutions for supporting students’ use of the modeling technology and use of data. The paper concludes with implications for the design and study of modeling technologies for science learning. 相似文献
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Vanessa L. Wyss 《TechTrends》2013,57(2):54-62
Student perceptions of science-oriented careers and scientists have been shown to be largely inaccurate. Through an instructional design and development process we have developed a method for offering students more accurate information about science-oriented careers. This paper follows the steps involved in developing a volume of podcast/interviews with STEM professionals and implementing the podcasts in middle level science classes. The purpose of the podcasts is to better inform middle school students about STEM career options. We present the challenges and successes of the development process as well as the efforts to create a second volume of podcasts, planned improvements and efforts for larger scale implementation, and the results from a pilot study involving the podcasts. 相似文献
148.
Vanessa H. Woodward Megan E. Webb O. Hayden Griffin III Heith Copes 《Journal of Criminal Justice Education》2016,27(3):340-361
A recurring concern within criminology and criminal justice (CCJ) is how to best investigate criminological theory and criminal justice policy. To assess the current state of research, we conducted a content analysis of articles that appeared in seven CCJ journals over a two-year period (2013–2014). We then examined types and frequencies of data sources, analytic techniques, methodological approaches, and subject matters. Findings demonstrate that articles are predominantly employing quantitative methodologies and data where there is no participant contact. From these findings, we discuss the current state of research and how this could be used to guide graduate education, by recommending a variety of subject matters that graduate schools should emphasize in training new academics. 相似文献
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