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All Journal Media Penelitian Pendidikan : Jurnal Penelitian dalam Bidang Pendidikan dan Pengajaran Experiment: Journal of Science Education
Hidayah, Nafisatul
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Education Physics

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Dampak Penutupan TPA Tlekung Kota Batu terhadap Pengelolaan Sampah bagi Masyarakat di Lingkungan Sekitar Desa Tlekung Kota Batu Salsabila, Helga; Hidayah, Nafisatul; Nisa, Aprilia Khoirun; Ningrum, Dian Eka Aprilia Fitria
Experiment: Journal of Science Education Vol 3, No 1 (2023)
Publisher : Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/experiment.v3i1.26548

Abstract

Waste from all areas of Batu City is dumped into one landfill located in Tlekung Village, Junrejo District. But for now, the landfill is still closed and it is not yet known when it will reopen. Waste management into compost is still running, but the delivery of waste from all over Batu City is stopped to centralize disposal at the landfill. On August 30, 2023, the landfill was officially closed. Some residents of Batu City requested that the landfill be closed for certain reasons. This research uses a qualitative approach with a case study design. Observation, interviews, and documentation were employed as data collection techniques. The gathered data underwent analysis through an interactive model encompassing data collection, reduction, display, and conclusion drawing. Triangulation involving techniques, sources, methods, and extended observation was implemented to ensure data validity. The closure of the Tlekung landfill has an impact on the waste management system, especially in Batu City, which was previously one in Tlekung landfill in Batu City to be managed by each village. In addition, the closure of the Tlekung landfill also has a positive impact and a negative impact. The positive impact is that the overall environmental quality will improve. The negative problem arising from this closure is residue, especially in the market area where it is not yet known where the waste should be disposed of.
Profil Berpikir Kritis Matematis Siswa SMP Ditinjau dari Gaya Kognitif Lestari, Revita Dwi; Koesharyanti, Nabila Dwi; Hidayah, Nafisatul; Nurfiyani, Okta; Setiyani, Linda Dewi; Sutrisno, Sutrisno
Media Penelitian Pendidikan : Jurnal Penelitian dalam Bidang Pendidikan dan Pengajaran Vol 19, No 2 (2025)
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/mpp.v19i2.26041

Abstract

This study investigates the critical thinking profiles of junior high school students based on their cognitive styles, Field Independent (FI) and Field Dependent (FD), within the context of solving contextual geometry problems. Critical thinking is an essential component of 21st-century mathematics learning, yet national and international assessments indicate that Indonesian students still struggle to demonstrate higher-order reasoning, particularly in geometry. To explore how cognitive style shapes students’ thinking processes, this study employed a descriptive qualitative approach involving four eighth-grade students selected purposively, consisting of two FI and two FD students determined using the GEFT. Data were collected through contextual geometry tests, task-based interviews, documentation, and field notes. The data were analyzed using Miles, Huberman, and Saldaña’s interactive model with support from NVivo for qualitative coding. Findings show that FI students produced higher and more consistent coding frequencies on the indicators of interpretation, analysis, evaluation, and explanation, and displayed more structured reasoning. In contrast, FD students demonstrated limited elaboration, intuitive responses, and lower coding frequencies. These results confirm that cognitive style significantly influences the depth of critical thinking. The study implies the need for differentiated mathematics instruction that accommodates students’ cognitive profiles to enhance critical thinking in geometry learning.
Co-Authors Dian Eka Aprilia Fitria Ningrum Koesharyanti, Nabila Dwi Lestari, Revita Dwi Nisa, Aprilia Khoirun Nurfiyani, Okta Salsabila, Helga Setiyani, Linda Dewi Sutrisno, Sutrisno