Open ended approach is a learning approach that presents a problem that has more than one answer or settlement method. Open ended approach encourages students to develop creative ideas and mathematical mindset by remembering previous mathematical concepts, so that with the open-ended approach, students are expected to have a much better mathematical creative thinking ability. The purpose of this research is to analyze the improvement of students creative thinking ability by using learning materials developed through autograph assisted open-ended approach. This research is a development research using Thiagarajan 4D model with define stage, design, develop, an dessiminate. The subject of this research is Junior High School Swasta Imelda Medan. The teaching materials that will be developed in this study are learning tools that include Learning Implementation Plan (RPP), teacher book (BPG), Student book (BS) and, student worksheet (LAS) and creative thinking ability test. From results of trial I and II by using learning materials developed through autograph assisted open-ended approach effectively used in learning mathematics so that there is an increase in creative thinking ability of students.

ABSTRAKTujuan dari penelitian ini adalah untuk meningkatkan Keterampilan Pidato Persuasif Pada Pelajaran Bahasa Indonesia Melalui Metode Simulasi Lomba Berpidato Berbahasa Indonesia Pada Siswa Kelas X- IA-1 SMA Negeri 7 Banda Aceh Tahun Ajaran 2016/2017. Penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan di kelas X- IA-1 SMA Negeri 7 Banda Aceh. Penelitian ini dirancang dalam dua siklus, tiap siklus terdiri dari :(1) Perencanaan, untuk mengidentifikasi masalah dan merencanakan kegiatan pembelajaran serta menyusun instrumen penelitian; (2) Pelaksanaan, yaitu melaksanakan pembelajaran keterampilan pidato persuasif dengan menerapkan metode simulasi dalam pembelajaran (3) Pengamatan, yaitu pengambilan data melalui tes dan lembar observasi; (4) Refleksi, yaitu menganalisis hasil pengamatan. Hasil penelitian menunjukkan bahwa dengan menerapkan metode simulasi lomba pidato berbahasa indonesia dalam pembelajaran hasil belajar siswa mengalami peningkatan pada masing-masing siklus. Hal ini dapat dilihat dari adanya peningkatan nilai rata-rata siswa dari masing-masing siklus. Kata Kunci : metode simulasi, Pidato persuasif.