34 WARTA, Vol .9, No. 1, Mret 2006: 34 - 38 APLIKASI PENDEKATAN MODEL KOOPERATIF DALAM PEMBELAJARAN MATEMATIKA N. Setyaningsih, Ariyanto dan Rita P Khotimah Fakultas Keguruan dan Ilmu Pendidikan Universitas Muhammadiyah Surakarta ABSTRACT One model of teaching applied to increase the students’ interest is the cooperative model. By using this method, the students are expected to be active and not teacher centered. This model is also likely to become one method of teaching which may increase the students’ performance. In order to achieve that point, this public service is conducted through discussion and training. The discussion as well as the simulation of this cooperative model application in mathematics teaching was conducted on Saturday 26th of July 2006. This program, which participants are Mathematics teachers of SLTP and SLTA Muhammadiyah, ran well based on the planned design. In the application practice of this model, there is a good interaction among participants. Yet in the material comprehension, still needs some expansion. Therefore, a significant follow up needs to be conducted in terms of Mathematics material with a suitable teaching approach. Kata kunci: pembelajaran matematika, model konvensional, dan model kooperatif. PENDAHULUAN Matematika dari tahun ke tahun berkembang semakin meningkat sesuai dengan tuntutan zaman. Tuntutan zaman mendorong manusia untuk lebih kreatif dalam mengembangkan atau menerapkan matematika sebagai ilmu dasar. Diantara pengembangan yang dimaksud adalah masalah pembelajaran matematika. Sugeng , M. (2001;2) menyatakan pengembangan pembelajaran matematika sangat dibutuhkan karena keterkaiatan penanaman konsep pada siswa, yang nantinya para siswa tersebut juga akan ikut andil dalam pengembangan matematika lebih lanjut ataupun dalam mengaplikasikan matematika dalam kehidupan sehari-hari. Namun demikian, pengembangan