Jurnal Inovasi Pendidikan Sains (JIPS) Volume 2 Nomor 2, November, 2021, pp: 54 - 61 http://jurnal.umpwr.ac.id/index.php/jips e-ISSN: 2747 - 1551 p-ISSN: 2757 - 1543 54 Development of Physics Learning Materials STEM-Local Wisdom Oriented to Improving Students' Critical Thinking Skills Nugraheni Ayu Agustina , Raden Wakhid Akhdinirwanto, Siska Desy Fatmaryanti Universitas Muhammadiyah Purworejo Jl. KH.A. Dahlan 3 Purworejo, Jawa Tengah, 54111, Indonesia |nughraheniaa1707@gmail.com | DOI : https://doi.org/10.37729/jips.v3i2.1482 | Article Info Submitted 14/09/2021 Revised 21/11/2022 Accepted 28/11/2022 Abstract – Research on the implementation of STEM-oriented physics learning and local wisdom has been carried out to determine the feasibility of STEM-oriented physics learning and local wisdom to improve students' critical thinking skills. This study uses the 4D development method, namely Define, Design, Develop, and Disseminate. The subjects of this study were students of class X MIPA at SMA Negeri 6 Purworejo for the academic year 2020/2021. The research data were obtained using interview methods, product validation, critical thinking skills validation, learning implementation validation, and student response questionnaires. The results of this study were obtained: (1) the validity of learning in terms of two expert validators got an average final score of 3.46 and 3.45 from material experts and media experts, so it can be said to be very valid and can be used in limited and broad tests. , (2) the results of the implementation of learning seen from the implementation sheet of learning are stated to be practical, and (3) the improvement of students' critical thinking skills seen from the pretest and posttest scores is always significantly increased and the N-gain is included in the medium category, and (4) getting participant responses positive students with good categories. Thus, it can be concluded that STEM-oriented physics learning and local wisdom are appropriate to be used to improve students' critical thinking skills. Keywords: STEM, Local wisdom, Learning materials, Critical thinking Abstrak – Penelitian implementasi pembelajaran fisika berorientasi STEM dan kearifan lokal telah dilakukan untuk mengetahui kelayakan pembelajaran fisika berorientasi STEM dan kearifan lokal dalam meningkatkan kemampuan berpikir kritis siswa. Penelitian ini menggunakan metode pengembangan 4D yaitu Define, Design, Develop, dan Disseminate. Subyek penelitian ini adalah siswa kelas X MIPA SMA Negeri 6 Purworejo tahun ajaran 2020/2021. Data penelitian diperoleh dengan menggunakan metode wawancara, validasi produk, validasi keterampilan berpikir kritis, validasi pelaksanaan pembelajaran, dan angket respon siswa. Hasil penelitian ini diperoleh: (1) validitas pembelajaran ditinjau dari dua validator ahli mendapatkan rata-rata skor akhir 3,46 dan 3,45 dari ahli materi dan ahli media, sehingga dapat dikatakan sangat valid dan dapat digunakan. dalam tes terbatas dan luas. (2) hasil pelaksanaan pembelajaran dilihat dari lembar pelaksanaan pembelajaran dinyatakan praktis, dan (3) peningkatan kemampuan berpikir kritis siswa dilihat dari nilai pretest dan posttest selalu meningkat secara signifikan dan nilai N -gain termasuk dalam kategori sedang, dan (4) mendapatkan respon peserta didik yang positif dengan kategori baik. Dengan demikian dapat disimpulkan bahwa pembelajaran fisika berorientasi STEM dan kearifan lokal tepat digunakan untuk meningkatkan kemampuan berpikir kritis siswa. Kata kunci: Bahan ajar, STEM, Kearifan lokal, Berpikir kritis