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Observation as a tool for evaluation of implementation 总被引：1，自引：0，他引：1
Gaea Leinhardt 《Instructional Science》1976,5(4):343-364
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Abstract The research results from the Museum Learning Collaborative (MLC) indicate that learning in museums (defined as conversational elaboration) is strongly influenced by three factors: 1) the learning environment (defined as the response to large design features); 2) conversational engagement (defined as explanatory, analytic and synthetic discussions of objects); 3) group identity (defined as knowledge, experience, and motivation). These results were consistent across different museum types and different visiting populations (Leinhardt and Knutson 2004). This case study uses the experiences and conversations of one group—four members of an intergenerational grandparent‐grandchild group—and one dimension of the model: identity. It examines how this particular group of grandparents used the museum setting to take on diverse roles in ways that reflected identities: the role of storyteller (a sharer of information and family knowledge); the role of playmate (a learner and teacher who can enjoy an environment); the role of modeler of caring social interactions (a harmonizer who can experience conversational coherence and dissonance with grace). The conversational segments reproduced here are a means of unpacking the MLC model and exploring the discourse behaviors of this particularly interesting group. 相似文献
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Many students now are receiving instruction in online environments created by universities, museums, corporations, and even students. What features of a given online course contribute to its effectiveness? This paper addresses that query by proposing and applying an analytic framework to five online introductory chemistry courses. Introductory chemistry was chosen because, as the central science, chemistry is a core component of scientific literacy as well as a long-established prerequisite for science, engineering, and medical fields. An online instructional delivery system has the potential to overcome the limitations of the traditionally large and passive lecture format characteristic of an introductory chemistry course by providing students with opportunities for active engagement and support in the learning process via self-pacing, dynamic expositions, interactive problem solving, and open ended or scaffolded explorations of new information. The proposed framework for addressing the effectiveness of online chemistry courses is informed by both cognitive and chemistry education research on examples, tasks, and explorations and includes a catalog of possible online resources. As a demonstration of the framework, an analysis was conducted on each course’s instruction in stoichiometry, a tool that is both challenging to students and fundamental to the solution-chemistry topics addressed during subsequent coursework. The application of this framework revealed characteristics of the courses that could affect their instructional effectiveness as well as students’ impressions of what it means to “do chemistry.” 相似文献
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