Lia Budi Tristanti, Toto Nusantara
This research aims to describe students' arguments in solving real analysis problems with a semiotic approach and describe students' arguments in solving spatial geometry problems with a semiotic approach. This study uses a qualitative method. The research subject was student teacher candidate STKIP PGRI Jombang Mathematics Education Study Program semester 4. Data collection techniques were carried out using the Proofing Problem Solving Task (TPMP) instrument, interview guide, and video recording. The research procedure included the subject being given a mathematical problem and asked to as much as possible express everything that was thought by voicing during the problem-solving process, the subject conveying the arguments that had been compiled to other fellow students in critical discussions, task-based interviews based on the results of written arguments. And verbal or subject responses. The stages of data analysis include data transcripts, data reduction; data code; checking data validity or data triangulation, reviewing data, interpreting findings, validating findings, and drawing conclusions. The results showed that the subject's mastery of mathematical material was used to build the content and quality of the argument. At the same time, the subject uses the semiotic approach to convey arguments in the form of speech, symbols, and gestures. The student's argument in solving real analysis and spatial geometry problems with a semiotic approach is that the subject conveys data, claims, warrants, backing, and rebuttal with speech, symbols, and gestures using the index finger. When the subject conveys the qualifier and rebuttal, it is dominated by speech and gesture. The subject said that the qualifier of the conclusion was certain, and there was no objection. The subject's gesture is with a firm facial expression, a head nod and a hand wave indicating no rebuttal, and using symbols as a sign of leverage. © 2023 Author(s).
Mathematics Education, STKIP PGRI Jombang, Pattimura III No.20 Street, Sengon, Jombang, Jombang, Jawa Timur, 61418, Indonesia; Mathematics Education, Universitas Negeri Malang, Ambarawa No.5 Street, Sumbersari, Lowokwaru, Malang, Jawa Timur, 65145, Indonesia