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This study aims to analyze students' mathematical connections through the application of the Think Talk Write (TTW) learning style and collaboration in the context of mathematics learning. The Think Talk Write (TTW) method emphasizes developing critical thinking, communication and writing skills in understanding mathematical concepts. Collaboration between students is also integrated to strengthen mathematical understanding through discussion and joint problem solving. This research uses a qualitative approach with case studies as the analytical framework. Data was collected through classroom observations, interviews with students, and analysis of students' writing. Research findings show that implementing the Think Talk Write (TTW) method with collaboration can improve students' mathematical connections, strengthen conceptual understanding, and improve communication and mathematical problem solving skills. Pedagogical implications of these findings are discussed to promote more effective and inclusive mathematics learning practices.

This research aims to enhance the mathematical communication skills of students after implementing the Think Talk Write cooperative learning model. The study was conducted in the first semester of the 2023/2024 academic year in class XI MIA 3 at MAN 1 Medan. The subjects of this research were 39 students from class XI MIA 3 MAN 1 Medan. The object of this research was the mathematical communication skills of students by applying the Think Talk Write learning model. The research method used was classroom action research conducted over 2 cycles. The results of the students' mathematical communication skills test showed improvement from the initial test to the tests given in Cycle I and Cycle II. In the initial test, only 1 student (2.5%) achieved proficiency with an average score of 56, categorized as low. In Cycle I, there was a classical increase, with 10 students (25.6%) achieving proficiency with an average score of 67.9, categorized as moderate. In Cycle II, there was also a classical increase, with 33 students (84.6%) achieving proficiency with an average score of 86.9, categorized as high. It can be concluded that by implementing the Think Talk Write cooperative learning model, it is possible to improve the mathematical communication skills of class XI MIA 3 students at MAN 1 Medan.

This study aims to determine students’ mathematical connection abilities with the think talk write cooperative learning model. The type of research used is research with a qualitative approach. Qualitative research uses descriptive or verbal data from people who have behaved. The method used is literature study. The type of data used is secondary data. Secondary data is data that already exists, so we just need to find and collect existing data. The secondary data source used in this research is the influence of the cooperative learning model of the think talk write type on students’ mathematical connection .From the search results, the researchers found 3 journals and 2 thesis relevant to the research topic. From the journal it was found that there was an influence of the think talk write cooperative learning model on students’ mathematical connection abilities.