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According to (Aufa, 2016: 232) Mathematics is one of the subjects taught at every level of education, from early childhood education to higher education. Mathematics is also a science that underlies the development of science and technology, so that mathematics is seen as a structured and integrated science, the study of patterns and relationships, and the science of thinking to understand the world around us. From the explanation of Ansari and Aufa, it can be concluded that mathematics is one of the subjects taught in every education which is useful for helping to clarify and simplify abstract situations through language and mathematical ideas so that it makes it easier to understand problem solving that exists in everyday life.

This study aims to determine the effect of using the Two Stay Two Stray (TSTS) learning model on the listening skills of fifth-grade students. The research was conducted in classes VB and VC at UPT SDN 015 Sumber Sari, involving a total of 62 students, during the odd semester of the 2024/2025 academic year, specifically in July 2024. The study utilized a Non-Equivalent Control Group Design, involving two classes: VC as the experimental class with 32 students and VB as the control class with 30 students. In the experimental class, learning was conducted using the Two Stay Two Stray (TSTS) model, while in the control class, conventional teaching methods were applied. Students' listening skills were assessed through pretests and posttests in audio format, each consisting of 20 questions. The data collected were analyzed using normality tests, homogeneity tests, and hypothesis testing through the SPSS 24 application. The results showed that hypothesis testing using the t-test produced a significance value of 0.000 < 0.05, indicating that Ha was accepted and Ho was rejected. These findings suggest a significant effect of applying the Two Stay Two Stray (TSTS) learning model on students' listening skills. This improvement was evident from the average posttest scores, with the experimental class achieving an average of 83.48, higher than the control class's average of 71.74. Thus, this study confirms that the use of the Two Stay Two Stray (TSTS) model is effective in enhancing the listening skills of fifth-grade elementary school students.  

This research aims to find out the results of research analysis of students abilities through the Two Stay Two Stray (TSTS) type cooperative learning model from various literature, as well as to analyze the difficulties of students mathematical communication skills through the Two Stay Two Stray model. This type of research is descriptive qualitative and uses a literature study research method which was carried out at the Digital Library, Medan State University in July – September 2022. The instrument in this study was the author himself. The steps of this research are: (1) Designing the research. (2) Carry out the research design. (3) Analyze and provide conclusions on the results of the analysis. The analysis technique used in the selection of information related to data analysis techniques is the Miles and Huberman analysis technique. The data source used secondary data consisting of 5 journals. The conclusions of the results of this study show that: (1) The average results of tests of students mathematical communication abilities through the application of the TSTS model are: (a) The indicator of mathematical representation is 51.93%, (b) The indicator of writing/explaining mathematics was 40.31%, (c) The indicators describe is 37.94%. (2) There are several difficulties experienced by students and teachers are: (a) Students have difficulty connecting real objects, pictures, and diagrams into mathematical models, (b) Students lack confidence in communicating arguments and ideas in mathematical problems, ( c) Students are less thorough in working on questions, (d) Students have difficulty expressing mathematical ideas in the form of graphs, pictures, or tables, (e) Low student skills in understanding mathematical communication problems and drawing conclusions about mathematical communication problems, (f ) The role of the teacher is less than optimal in carrying out learning activities.