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Penelitian ini bertujuan untuk mengetahui cara penerapan model inkuiri terbimbing sehingga dapat meningkatkan aktivitas belajar peserta didik kelas VII A SMP Negeri 2 Kota Bengkulu. Jenis penelitian yang dilaksanakan adalah Penelitian Tindakan Kelas (PTK) dengan teknik pengumpulan data melalui lembar observasi aktivitas. Subjek dalam penelitian ini adalah peserta didik kelas VII A SMP Negeri 2 Kota Bengkulu Semester Genap Tahun Ajaran 2017/2018 berjumlah 33 orang, teridiri dari 16 peserta didik laki-laki dan 17 peserta didik perempuan. Penelitian dilaksanakan dalam 3 siklus dari tanggal 26 maret 2018 sampai dengan 21 mei 2018. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran inkuiri terbimbing dapat meningkatkan aktivitas belajar matematika peserta didik. Peningkatan aktivitas belajar matematika peserta didik dapat dilihat dari nilai rata-rata observasi peserta didik siklus I, II, dan III secara berturut-turut yaitu 27, 36.13, 38.63 dengan kriteria secara berturut-turut yaitu cukup aktif, aktif, aktif. Kata Kunc i: Aktivitas, Pembelajaran Inkuiri Terbimbing. ABSTRACK This study aimed to improve mathematics learning outcpmes in rectangular and triangular materials by applying guided inquiry learning model. The type of this research is classroom action research with technique of collecting data by using learning observation sheet. Subjects of this research are students on VIIA class in SMP Negeri 2 Bengkulu City. The study was conducted in 3 cylces, which is one cycle consisted of four meetings and one final test. Implementation started on march 26th 2016 untill may 21th 2018. This research showed that implementation of guided inquiry learning improve the result of the students. The result of implementation guided inquiry learning model can be seeb from average score on test for first, second, and third cycle respectively which were 64,89,78,73,85,76. The classical completeness in the first, second and third cycle which were 54,55%, 75,76% and 87,88% respectively. Key Terms : Learning activity, Guided Inquiry Learning

The concept of vector was one of concepts that was difficult for students to understand. Realistic mathematics learning with ethnomathematics approach makes it easy for students to learn mathematics. The purpose of this study was to describe the mathematical process of students in understanding vector concepts through learning realistic mathematics and ethnomathematics. This research was the prototype stage of development research. The subjects of this study were 38 high school students in Bengkulu. Observation sheets, anecdotes and interview guides were the instruments of this research. Data was collected during the realistic mathematics learning process using the ethnomathematics approach. Data was analyzed qualitatively. The results of this study were the mathematical process of students in understanding the concept of vector by using selfie culture. Camera drones can stop in space. This was one of the multiplication properties of two perpendicular vectors. Multiplication of points was zero. The conclusion of this study was that the mathematical process of students using realistic selfie culture can achieve the multiplication of two vectors which form right angles.