Helena Caldeira

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The aim of this study is to analyse the effect of tasks on the detection of explanation obstacles when secondary school students read scientific texts. Students were instructed to read short passages under different task conditions, and to ask questions if necessary. Obstacle detection was operationalised in terms of the type of questions asked by the(More)
This study examines question asking about causal relations when students read scientific texts. We examine the influence of the length of causal chains and the knowledge of readers. Students from grades 8 and 12 read two short paragraphs that described natural phenomena. Length of the causal chain linking cause and effect in two key sentences was(More)
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