Penggunaan e-worksheet berbasis Etno-Modelling dan Tri-N untuk meningkatkan kemampuan berpikir kritis matematis siswa kelas VII MTs Ma’arif Jangkaran

Hamidah Wijayanti (Program Studi Pendidikan Matematika, Universitas Sarjanawiyata Tamansiswa)
Sri Adi Widodo (Universitas Sarjanawiyata Tamansiswa)
Irham Taufiq (Program Studi Pendidikan Matematika, Universitas Sarjanawiyata Tamansiswa)
Wahyu Hidayat (Program Studi Pendidikan Matematika, Institut Keguruan dan Ilmu Pendidikan Siliwangi)
Usman Aripin (Program Studi Pendidikan Matematika, Institut Keguruan dan Ilmu Pendidikan Siliwangi)

JPMI (Jurnal Pembelajaran Matematika Inovatif)
Vol. 9 No. 2 (2026): JPMI

Various evaluation results indicate that students' mathematical critical thinking skills are still relatively low. This study aims to determine the effectiveness of using E-Worksheets based on Ethno-Modeling and Tri-N in improving the students’ mathematical critical thinking skills. This study uses a quantitative approach with a quasi-experimental method and a time series design. The research subjects consisted of 20 students selected using a purposive sampling technique. Data were collected through essay tests at each meeting and analyzed using descriptive statistical analysis, trend analysis, and data stability analysis. The results showed a gradual increase in the average value of students' mathematical critical thinking skills from the first to the last meeting with a tendency for an increasing and stable trend. The trend analysis showed a positive trend, while the stability analysis showed a data stability percentage of 88.9%, which is considered stable. These results indicate that the use of Ethno-Modeling and Tri-N-based E-Worksheets is effective in improving students' critical mathematical thinking skills.