Mengoptimalkan dukungan guru dalam melibatkan siswa menggunakan argumentasi kolektif pada pembelajaran Matematika

This study aimed to describe teacher’s support on collective argumentation in the form of teacher’s activities that could encourage the student engagement in learning mathematics. This study used qualitative method with descriptive approach which involved a mathematics teacher and 30 eleventh grade students in learning linear program material. The data were collected through observation sheet of teacher’s and students’ activities, and the questionnaire of engaging students which adapted from Reeve and Tseng. The data were analyzed qualitatively through data verification, data presentation, and make a conclusion. The result of this study showed that the teacher did not give written assignment so that the students could not gain data to build their arguments. The average frequency of student engagement on the aspects of agentic engagement was 14.2%, behavioral engagement was 26%, emotional engagement was 27.5%, and cognitive engagement was 24.9%.