Publisher Summary This chapter discusses data concerning the time course of word identification in a discourse context. A simulation of arithmetic word-problem understanding provides a plausible account for some well-known phenomena. The current theories use representations with several mutually constraining layers. There is typically a linguistic level of representation, conceptual levels to represent both the local and global meaning and structure of a text, and a level at which the text itself has lost its individuality and its information content. Knowledge provides part of the context within which a discourse interpreted. The integration phase is the price the model pays for the necessary flexibility in the construction process.

http://www.texai.org/papers/Kintsch_1988.pdf

The role of knowledge in discourse comprehension : a construction-integration model

Stichwort : Professionelle Kompetenz von Lehrkräften

E-Moderators are \"the new generation of teachers and trainers who work with learners online\" (p. viii) using Computer-Mediated Conferencing (CMC) as a learning tool, regardless of the subject they are teaching. They are the focus of E-Moderating, a recent book which provides both a theoretical framework for developing online learning using CMC (part one), and a wealth of practical advice (part two). The book is supported by a Web site. The author, Gilly Salmon, a distance education specialist with the Open University Business School in the UK, provides a five-step model of effective online education, along with copious examples of how the model relates to real-life online learning contexts. Salmon proposes that, by basing learning on a constructivist model, it is e-moderators that can make the difference in online education as they convene, direct, summarize, and archive synchronous and asynchronous discussions.

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E-Moderating: The Key to Teaching and Learning Online

This meta-analysis summarizes teaching effectiveness studies of the past decade and investigates the role of theory and research design in disentangling results. Compared to past analyses based on the process–product model, a framework based on cognitive models of teaching and learning proved useful in analyzing studies and accounting for variations in effect sizes. Although the effects of teaching on student learning were diverse and complex, they were fairly systematic. The authors found the largest effects for domainspecific components of teaching—teaching most proximal to executive processes of learning. By taking into account research design, the authors further disentangled meta-analytic findings. For example, domain-specific teaching components were mainly studied with quasi-experimental or experimental designs. Finally, correlational survey studies dominated teaching effectiveness studies in the past decade but proved to be more distal from the teaching–learning process.

Teaching Effectiveness Research in the Past Decade: The Role of Theory and Research Design in Disentangling Meta-Analysis Results

Working memory limits are best defined in terms of the complexity of the relations that can be processed in parallel. Complexity is defined as the number of related dimensions or sources of variation. A binary relation has one argument and one source of variation; its argument can be instantiated in only one way at a time. A binary relation has two arguments, two sources of variation, and two instantiations, and so on. Dimensionality is related to the number of chunks, because both attributes on dimensions and chunks are independent units of information of arbitrary size. Studies of working memory limits suggest that there is a soft limit corresponding to the parallel processing of one quaternary relation. More complex concepts are processed by "segmentation" or "conceptual chunking." In segmentation, tasks are broken into components that do not exceed processing capacity and can be processed serially. In conceptual chunking, representations are "collapsed" to reduce their dimensionality and hence their processing load, but at the cost of making some relational information inaccessible. Neural net models of relational representations show that relations with more arguments have a higher computational cost that coincides with experimental findings on higher processing loads in humans. Relational complexity is related to processing load in reasoning and sentence comprehension and can distinguish between the capacities of higher species. The complexity of relations processed by children increases with age. Implications for neural net models and theories of cognition and cognitive development are discussed.

/pdf/processing-capacity-defined-by-relational-complexity-5s22d61kpf.pdf

Processing capacity defined by relational complexity: Implications for comparative, developmental, and cognitive psychology

https://www.denisecummins.com/uploads/1/1/8/2/11828927/cummins_cogpsy1988.pdf

Kurt Reusser

Papers

The role of understanding in solving word problems

Quality of geometry instruction and its short-term impact on students' understanding of the Pythagorean Theorem

One lesson is all you need? Stability of instructional quality across lessons.

Every word problem has a solution—The social rationality of mathematical modeling in schools

Berufsbezogene Überzeugungen von Lehrerinnen und Lehrern