![]() The research was conducted in SMK Muhammadiyah 3 Singosari with students of class X as research subject. Meanwhile, a written rubric of mathematics communication ability was used for analyzing the data. One of the assessments that can be used in mathematics learning is a performance assessment.This research used a qualitative descriptive type with written mathematics communication test. In determining the ability of students’ written mathematics communication, a teacher can conduct an assessment. Students only do plain works that demanded a result but do not or rarely asked the origin or process steps in doing it. Mathematics communication is very important although there are only few students who can communicate it nowadays, so that it makes the students’ ability decreased. Oral way or written way toward mathematics problems. Mathematics communication is a way to express mathematical ideas, either in Performance assessment, mathematical communication skills, system of linear equations and inequalities Keywords: Problem Based Learning Model (PBL), Creative Thinking Ability, Learning Independence.Pendidikan Matematika, FKIP, Universitas Muhammadiyah Malang The result of this study also showed that students have learning independence during the PBL model in learning process. Thus, there was an improvement in students' creative thinking skills after using PBL learning model. The result of the study showed that students are creative in solving problems related to the comparison during the PBL model in learning process. Pre-test and post-test results were analyzed by statistical test using SPSS version 22 software for Windows, and the results of the learning independence questionnaires were analyzed by using a Likert scale and percentage. The result of data analysis in the daily description test and observation used the assessment rubric of creative thinking skills with qualitative descriptive method. These instruments were used to obtain data of the improvement of students' creative thinking abilities after using the PBL model were pre-test and post-test, and also the instruments which were used to describe student learning independence during the learning process by using PBL model. The instruments in this study were daily description test, observation and questionnaire. The sample was selected by random sampling, namely students of class VIII-3, which were consisted of 28 students from all eighth grade of SMP Negeri 16 Banda Aceh. This study uses mixed method research with concurrent embedded strategy. This study aimed to (1) describe students' creative thinking skills during the learning process by using PBL model, (2) find out the improvement of students' creative thinking skills after using the PBL model, and (3) describe student learning independence during the learning process by using PBL model. ![]()
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