This research is motivated by the low interest of students in learning flat building materials in mathematics learning in elementary schools. Geometry material is often considered abstract by students, so contextual and interesting learning media are needed. One alternative that can be used is local culture-based media. This study aims to develop a miniature diorama media of the Batak Karo Traditional House as a learning tool for flat building in grade IV of elementary school and to determine the feasibility of the media based on expert validation, as well as the responses of teachers and students. This research is research and development (Research and Development) with ADDIE (Analysis, Design, Development, Implementation, Evaluation). The test subjects consisted of grade IV students and teachers at an elementary school in Medan City. The validation results show that the developed media is very feasible to use. Media expert validation obtained a feasibility score of 88%, and material expert validation obtained a score of 87%. The response of teachers and students to the media was also very positive. The use of dioramas based on local culture has been proven to increase students' attraction to the material and facilitate the understanding of geometry concepts. The diorama media of the Batak Karo Traditional House is suitable for use as a thematic learning medium, especially for flat building materials in grade IV of elementary school, as well as a means of preserving local cultural values in education.

The use of learning media in high-level reading classes plays an important role in improving students' reading abilities. Various types of learning media, including visual, audio-visual, and interactive computer-based materials, are used for this purpose. The process of utilizing learning media includes analysis of student characteristics, design, development, implementation and evaluation of learning outcomes. This learning media has various functions in teaching reading, such as facilitating access to information, motivating students, helping understanding and retention of information, fostering critical thinking skills, enabling differentiated learning, encouraging independent learning, and developing digital literacy skills. In addition, many studies have investigated the effectiveness of various learning media, such as comics, modules, computer-based interactive learning, and picture cards, in increasing elementary school students' interest in reading and academic achievement.

Pendidikan merupakan salah satu usaha untuk menjadikan manusia menjadi lebih baik, dengan cara mengikuti proses pembelajaran yang menekankan pada peningkatan kemampuan siswa untuk menjadi pribadi yang memiliki pemahaman yang luas dan mumpuni. Salah satu aspek yang dapat meningkatkan kemampuan dan pemahaman yaitu melalui membaca. “Banyak Baca, Banyak Tahu” merupakan salah satu slogan mengenai pentingnya membaca. Proses pembelajaran yang sukses harus menggunakan strategi yang relevan guna untuk mencapai tujuan pembelajaran. Penulisan ini bertujuan untuk mengetahui strategi pembelajaran membaca lanjutan di kelas tinggiguna untuk meningkatkan kemampuan belajar siswa. Dalam proses penelitian ini menggunakan metode pendekatan rasional yang disusun berdasarkan hasil observasi studi pustaka. Dari hasil penelitian dapat disimpulkan bahwa penggunaan strategi yang baik dan relevan pada pembelajaran membaca lanjutan di kelas tinggi dapat mempengaruhi efektivitas serta dapat meningkatkan kemampuan belajar siswa.