Pupil's understanding of scientific evidence in the context of investigative work

TL;DRAbstract

The research reported in this study is based on a detailed observation study of pupils carrying out investigative work in primary and secondary schools. The thesis examines the question of the type and level of understanding of scientific evidence which is employed in a number of different types of tasks associated with two underlying substantive concepts. The results suggest that the characteristics of each task make different demands on pupils of different ages and show that some pupils, in both primary and secondary schools, are capable of applying and synthesising ideas about evidence effectively in a problem-solving situation. Most pupils, however, even in Year 9, show a weak understanding of the application of many of these ideas, such as repeatability, range and interval or the most appropriate type of graph. It is argued that if pupils are to understand scientific evidence, then these ideas need to be taught and their synthesis in investigative work regularly reinforced. The pr

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