p-ISSN: 2808– 5604 e-ISSN: 2808 – 5078 Volume. 4, No. 1, April 2023 Indo-MathEdu Intellectuals Journal 1 THE DEVELOPMENT OF INSTAGRAM FILTER-BASED LEARNING MEDIA FOR MATHEMATICS IN JUNIOR HIGH SCHOOL Valeria Yekti Kwasaning Gusti 1 , Uliya Khoirun Nisa 1 , Rika Aprianti 1 , Khoirotun Nadiyyah 1 , Egi Ryan Aldino 2 1 Universitas Terbuka, Jl. Pd. Cabe Raya, Pd. Cabe Udik, Kec. Pamulang, Tangerang Selatan, Banten, Indonesia 2 CoLearn, Jl. Jenderal Sudirman, Kuningan, Karet, Jakarta Email: valeria.gusti@ecampus.ut.ac.id Article History Received: 09-01-2023 Revision: 25-02-2023 Accepted: 18-03-2023 Published: 12-04-2023 Abstract. The rise of the digital age and STEM-based occupations (Science, Technology, Engineering, and Mathematics) has increased the significance of mathematics skills in the workplace and in the classroom. At the same time, the usage of social media such as Instagram, as well as Instagram's effects and filters, has become widespread among adolescents, particularly students. The purpose of this study is to develop an Instagram filter-based learning media for junior high school students. The material used in the development of the Instagram filter is the material on Relations and Functions that is difficult to understand by students based on a student needs questionnaire. This study developed an Instagram-based learning media by administering validation and feasibility tests to material experts, media experts, and student response questionnaires in the form of a small-scale trial. The designed Instagram filter-based learning media received an average score of 83.22 percent with a very good interpretation based on the validation and feasibility tests. Keywords: Mathematics learning media, Relations, Functions, Instagram filter Abstrak. Perkembangan era digital dan profesi berbasis STEM (Science, Technology, Engineering and Math) menguatkan perannya penguasaan kemampuan matematika di tempat kerja dan di sekolah. Di sisi lain, penggunaan media sosial seperti Instagram beserta efek dan filter Instagram menjadi hal umum di kalangan remaja terutama pelajar. Tujuan dari penelitian ini adalah untuk mengembangkan media pembelajaran berbasis filter Instagram untuk siswa di Sekolah Menengah Pertama. Materi yang digunakan dalam pembuatan filter Instagram adalah materi Relasi dan Fungsi yang sukar dipahami oleh siswa berdasarkan angket kebutuhan siswa. Penelitian ini mengembangkan media pembelajaran berbasis filter Instagram dengan melakukan uji validasi dan kelayakan kepada ahli materi, ahli media, dan angket respon siswa dalam bentuk uji coba pada kelompok kecil. Dari hasil uji validasi dan kelayakan, media pembelajaran berbasis filter Instagram yang dikembangkan mendapatkan nilai rata-rata 83,22% dengan interpretasi sangat baik. Kata Kunci: Media pembelajaran matematika, Relasi, Fungsi, Filter instagram How to Cite: Gusti, V. Y. K., Nisa, U. K., Aprianti, R., Nadiyyah, K & Aldino, E. R. (2023) The Development of Instagram Filter-Based Learning Media for Mathematics in Junior High School. Indo-MathEdu Intellectuals Journal, 4 (1), 01-09. http://doi.org/10.54373/imeij.v4i1.62. INTRODUCTION The global trend toward Science, Technology, Engineering, and Mathematics (STEM) based occupations has made mathematical proficiency crucial in modern culture. Good mathematics abilities are not only necessary in the job market business, but also serve to