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de Lima Tavares, Marina; Jimenez-Aleixandre, Maria-Pilar; Mortimer, Eduardo F. – Science & Education, 2010
The oral arguments of 12th grade students while solving tasks related to evolution are examined. Two groups (N = 45), taught by the same teacher, were studied during a complete teaching sequence. The paper focuses on data from the last sessions, devoted to solving problems in small groups, problems related to different dimensions of the…
Descriptors: Persuasive Discourse, Grade 12, Problem Solving, Group Activities