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The aim of this study was to examine metacognition in computersupported collaborative problem solving. The subjects of the study were 13-yearold Finnish secondary school students (N = 16). The Knowledge Forum learning environment was used to support student pairs_ problem-solving task involving polygons in a geometry course. The data consist of the student pairs_ posted computer notes (n = 95). To examine metacognition in a social context in the networked discussions, the features and patterns of networked interaction, the metacognitive content of the computer notes and their relations were examined. To examine the features of networked interaction, the social network analysis measures were used. The patterns of networked interaction were displayed with the multidimensional scaling technique. In the analysis, metacognitive contents of the computer notes were categorized as metacognitive knowledge, metacognitive skills, and not metacognitive. Further, with the correspondence analysis, we examined how the student pairs_ metacognitive activity was distributed. The results of the study revealed that the metacognitive activity varied among participants, although some aspects of metacognition such as planning were never encountered. It was found that there is a relation between metacognitive activity and the features of interaction. The student pairs who monitored and evaluated the ongoing discussions had a strategically optimal position in the communication network.

In this study we analyzed and described how students and teacher of one Finnish elementary class participated in and communicated through CSILE (Computer Supported Intentional Learning Environment) during the years 1997-1998. To this end, we examined the density of the interaction within class, students' participation rates, students' position in the CSILE mediated network of interaction, and the quality of their discourse. The data consisted of CSILE log files and students' written productions from the CSILE database. Social network analysis and qualitative content analysis were used to analyze the data. The findings showed that the density of interaction among participants was rather high, and all the students used CSILE to some extent. There were, however, substantial differences in the students' participation rates. The results also indicated that one student occupied a central position, and two students an isolated position in the CSILE mediated interaction. The study further revealed that the CSILE mediated discussion was composed of number of short discussion threads. The culture of CSILE mediated discourse and collaboration can be defined as follows; on topic, neutral, and providing information to others' comments or questions.

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The aim of this study was to investigate differences in student teachers’ and experienced teachers’ professional vision in natural settings and to elicit clues of the relation of in-the-moment noticing and instruction quality of students’ understanding of rational number concept. Rational number concept challenges both students and teachers because of natural number bias that learning of rational numbers is vulnerable to. Accurate professional vision and adequate instructions are needed to enhance students’ understanding of rational number concept. Mobile eye-tracking technique enables video recording of natural teaching situations from a teacher’s perspective with more specific information of teacher’s in-the-moment noticing. Combined with cued retrospective reporting, this approach can gather more explicit evidence of teachers’ professional vision and instructions. Results indicated that both student teachers and experienced teachers attended to mathematical and fraction-related aspect similarly but differed in interpreting and instructing students’ fraction understanding. Student teachers made more advanced interpretations but their instructions were less adequate, whereas among experienced teachers, it was just the opposite. Furthermore, student teachers made more attempts to shared attention when using fraction understanding non-supporting instructions, whereas experienced teachers’ attempts to shared attention were related to fraction understanding supporting instructions. Results indicate student teachers’ difficulty to transfer pedagogical content knowledge from noticing to actions and experienced teachers to have more enhanced in-the-moment professional vision and its application to teaching. Practical implications for teacher training as well as methodological decisions of in-the-moment professional vision studies in natural settings are discussed.