No abstract

Penelitian ini dilakukan berdasarkan pada pentingnya meningkatkan kemampuan pemahaman konsep matematis siswa dalam mempelajari matematika bagi siswa SD untuk mendukung kemampuan matematis selanjutnya. Untuk mengetahui peningkatan kemampuan pemahaman konsep matematis siswa SD maka penelitian ini membahas tentang model pembelajaran flipped classroom dengan media video pembelajaran untuk meningkatkan pemahaman konsep matematis siswa. Penelitian ini bertujuan untuk mengetahui kemampuan pemahaman konsep matematis siswa yang menggunakan model pembelajaran flipped classroom dengan media video pembelajaran. Metode penelitian yang digunakan menggunakan metode kuasi eksperimen dengan nonequivalent control group design. Populasi dalam penelitian ini adalah SD Negeri di Kecamatan Sumedang Utara dengan total jumlah keseluruhannya yaitu 34 sekolah dan di Kecamatan Cimalaka dengan jumlah keseluruhannya yaitu 29 sekolah. Kelas IV di SDN Karangpawulang sebagai kelas kontrol dan kelas IV di SDN Sukamaju sebagai kelas eksperimen. Jumlah subjek penelitian diambil 30 responden untuk kelas eksperimen dan 23 responden untuk kelas kontrol.  Instrumen yang digunakan dalam penelitian ini yaitu soal pretes-postes kemampuan pemahaman konsep matematis, dengan teknik analisis uji normalitas, uji homogen dan uji beda rata-rata hasil nilai pretes dan postes serta nilai n-gain dari kelas eksperimen dan kelas kontrol. Dari hasil perlakuan terhadap siswa selama tiga pertemuan menunjukkan bahwa: Efektifitasnya pembelajaran yang menggunakan model pembelajaran flipped classroom dengan media video pembelajaran belum dapat dikatakan lebih baik dibandingkan pembelajaran yang menggunakan metode konvensional. Penggunaan metode pembelajaran yang efektif akan mendukung proses belajar siswa untuk memahami materi ajar.

Geometry Ability is one of the mathematical abilities that must be mastered by students, this is because geometry ability is one part of learning mathematics. However, the reality in the field in junior high school students, students have difficulty in learning transformation geometry, namely in the material of reflection, rotation, translation and dilatation. This difficulty of students is caused by students not understanding the coordinate points on the cartesian plane. The difficulty of students in determining cartesian coordinates has the effect that students cannot determine straight-line drawings based on straight-line equations. Another thing that causes students difficulty in understanding the geometry of transformation is that students' ability to think abstractly is still very low, students cannot describe concepts from mirroring, turnover, shifting and dilatation. The purpose of this study is to understand the geometry of trasnsformas through the exploration of Jambi batik. The research method used is descriptive qualitative, the result of the research obtained is that there is a concept of transformation geometry in Batik Motik Jambi so that it can be applied in mathematics learning

Low mathematical literacy is one of the causes of the lack of interest and motivation in learners. Mathematical literacy and realistic mathematical approaches have relevant characteristics. This research aims to develop memes as learning media with a realistic mathematical approach to develop mathematical literacy in elementary school students. The research consists of several steps, which are: analysis, design, development, implementation, and evaluation. The methods used are descriptive, evaluative, and experimental with a pre-experimental design. The instruments used were expert validation questionnaires, student response questionnaires, teacher observation sheets, and evaluation assessments. The results obtained from material experts were 79% and 78% from media expert, both in the appropriate category. Assessments of mathematical content obtained the validation results from the material experts and media experts with scores of 79% and 78%; both belong to the decent category. In large-scale trials, the results of the student response questionnaire after learning obtained a score of 73% while the evaluation results obtained a score of 60%. The students' evaluation scores are evenly distributed from the lower limit of 25 to the upper limit of 95. Based on the results, it can be concluded that meme teaching media with a realistic mathematical approach develop students’ mathematical literacy even though it is not a high level.