Upaya Meningkatkan Kemampuan Berpikir Kritis Dan Kreatif Matematis Siswa Kelas X SMA Negeri 3 Cimahi Pada Pembelajaran Matematika Melalui Pembelajaran Berbasis Masalah
Keywords:Critical thinking skills, Creativity, Mathematics, Problem based learning approach
The purpose of research this are: (1) To improve students' critical thinking skills in mathematics learning through problem based learning approach. (2) To improve students' creativity in mathematics learning through the problem based learning approach. The type of the research is qualitative research with the design type action (PTK). The subjects were students of class X . and math teacher SMA Negeri 3 Cimahi . Data collection techniques with principal method (observation and tests) as well as auxiliary method (field notes and documentation). Results: (1) There is an increased critical thinking skills of students in mathematics, including (a) the ability 2 to provide a simple explanation by analyzing the question rose from before applying the treatment of 3 students (11.11%) after treatment to 20 students (74.07%); (b) the ability to provide further explanation by identifying the increased assumption of prior actions 2 students (7.41%) after treatment to 14 students (51.85%); (c) the ability to manage the strategy and tactics to determine and write down the solution of the problems of prior actions increased 3 students (11.11%) after treatment to 23 students (85.19); and (d) increased ability to determine the conclusion of prior actions 4 students (14.81%) after treatment to 21 students (77.78). (2) There is a growing creativity of students in mathematics, cover (a) creativity in asking to increase from before applying the treatment of 4 students (14.81%) after treatment to 18 students (66.67%); (b) creativity in expressing ideas or opinions increased from before applying the treatment of 2 students (7.41%) after treatment to 15 students (55.56%); (c) creativity in providing answers to questions of teachers increased from before applying the treatment of 2 students (7.41%) after treatment to 14 students (51.84%) and (d) creativity in doing exercises in front of the class increased from before applying the treatment of 3 students (11.11%) after the action into the 19 students (70.37%).