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Inter-relations of tutor’s and peers’ scaffolding and decision-making discourse acts
Authors:Kai Pata  Erno Lehtinen  Tago Sarapuu
Institution:(1) Science Didactics Department, University of Tartu, 46 Vanemuise St., 51014 Tartu, Estonia;(2) Centre for Learning Research and Department of Teacher Education, University of Turku, Turku, Finland
Abstract:This study investigates the mechanisms of scaffolding in a synchronous network-based environment – the ‘collaborative virtual workplace’. A theoretical ‘multi-actor’ scaffolding model was formulated. The study itself focused on the role and inter-relations of verbal scaffolding by tutor and peers during a collaborative process of making decisions about environmental issues. The analysis drew on data from the decision-making discussions of 31 groups – material that was saved automatically by the learning environment software. The age of the 62 students ranged from 14 to 17. Discourse act categories were devised to describe the tutor’s and the students’ task-related, supportive and social communicative acts. The scaffolding situation was characterized through a causal discourse act interaction approach. Tutor and students appeared to be elaborating and replacing each other’s process scaffolding acts in the collaborative decision-making situation. The influence of certain tutor’s and students’ inter-related scaffolding patterns on students’ decision-making provided empirical support for the ‘multi-actor’ scaffolding model. in final form: 12 May 2005
Keywords:decision-making  synchronous collaborative learning environment  tutor and peer scaffolding
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