469 research outputs found

    Les bij De Spiegel, Mensje van Keulen

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    The full Tanja

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    Oracy matters:Introduction to the special issue on oracy

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    Students’ ability to solve process-diagram problems in secondary biology education

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    Process diagrams are important tools in biology for explaining processes such as protein synthesis, compound cycles and the like. The aim of the present study was to measure the ability to solve process-diagram problems in biology and its relationship with prior knowledge, spatial ability and working memory. For this purpose, we developed a test that represents process diagrams and adjacent tasks used in secondary education biology. Results show that the ability to solve process-diagram problems is correlated to prior knowledge, spatial abilities and visuospatial working memory capacity. A difference in impact of spatial skills was demonstrated for the level of cognitive demand when solving process-diagram problems

    The case of 'Yummy Yummy' - a replication of an intervention program

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    Synthesis writing in science orientation classes:An instructional design study

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    This study tested an instructional design to improve students' synthesis performance in a specific academic subject, Science Orientation, which aimed to teach students how to critically evaluate scientific debates. The design included three components: 1) students construct a task definition via a learning strategy based on comparing and contrasting texts and processes, 2) students comprehend source information via a read-stop-think-note strategy, and 3) students connect source information critically via a semantic-textual transformation strategy. After several design iterations, the instructional design was tested in a quasi-experimental experiment with a pretest-posttest. Seven 10th grade classes participated in the intervention (n=129), four in the control condition (n=86). The design seemed feasible for teachers, students completed most learning tasks as intended and evaluated the course positively. Furthermore, texts written in the experimental condition at posttest were rated significantly higher than those written in the control condition on the instructed aspects: representation of source information, intertextual integration, and critical stance. This instructional design appears to have potential for helping students improve their comprehension of scientific debates and comprehensive writing. In the discussion we propose that the instructional design might be a general format for learning to synthesize domain specific information from contrasting sources.</p
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