Communication Ability and Mathematical Literacy of Junior High School Students in the TSTS Learning Model Assisted with Codular Application

The selection of appropriate methods and media in math learning is crucial for student competence improvement. Inappropriate methods and media lead to low communication ability and mathematical literacy in students. The objective of this research is to provide a description of communication skills and mathematical literacy through the implementation of the Two Stay Two Stray learning model, with the assistance of the codular application. The subjects of this qualitative research were 32 7th-grade students in Malang. Data on learning implementation and student responses were collected using questionnaires, and communication skills and mathematical literacy were assessed using essay tests. Results showed that teachers can conduct math learning effectively using Two Stay Two Stray (TSTS) with codular applications. The results of this research are that the teacher’s ability to manage learning in the classroom using the media-assisted TSTS learning model obtained a final score of 74% in the good category, and student activities during learning scored 70% in the good category. Student response questionnaire to media with a score of 82.58% in the agree category. Students’ abilities in answering test questions vary. Based on the results of calculations, students’ overall mathematical communication skills obtained an average percentage of 80.73% in the high category. Meanwhile, students’ mathematical literacy skills obtained an average percentage of 78.91% in the high category.