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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education)
Hilda Mazlina
Universitas Syiah Kuala
Astronomy Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics

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Self-Description and Observers Perspective Toward Science Teachers Ability in Using Questioning Technique in Middle School Hilda Mazlina; Abdul Halim; Yusrizal Yusrizal
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 8 No. 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v8n2.p106-114

Abstract

The study aimed at inquiring how science teachers use question technique in the teaching-learning process. The methodology used in this study was a survey method of quantitative approach. The population is all senior high school Physics teachers in Banda Aceh. The sample is the Physics teachers regarding their length of duty which were 6 teachers from 6 schools. The sampling technique was using disproportionate stratified random sampling based on the schools accreditation. The data collection process was carried out by distributing the questionnaire to teachers and documentation technique by videotaping the learning process. The data were analyzed using a descriptive technique. The results showed that teachers used redirecting technique (70%) and probing technique (45.83%). Next, the teachers experience only impacts the probing technique. A suggestion that can be made in teaching Physics, teachers should ask questions that track and test students understanding toward a concept that they have learned.
AC Portable Tanpa Mengunakan Freon Sebagai Alternatif Pendingin Udara Ramah Lingkungan Elisa Kasli; Devi Rehan; Hilda Mazlina
Jurnal Pendidikan Sains Indonesia Vol 7, No 1 (2019): APRIL 2019
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (719.84 KB) | DOI: 10.24815/jpsi.v7i1.13544

Abstract

Penggunaan AC dianggap mampu menstabilkan suhu udara maupun kelembapan suatu area dengan sistem pendinginan. Namun, banyak masyarakat tidak menyadari bahwa penggunaan AC yang diperoleh melalui penggunaan bahan refrigerant atau biasa disebut Freon juga menjadi salah satu faktor terjadinya pemanasan global. Oleh karena itu, inovasi AC portable menjadi salah satu bentuk untuk mengurangi pemanasan global serta menghemat energi listrik. Metode yang digunakan adalah metode eksperimental dengan pengambilan data langsung terhadap alat uji. Pembuatan AC portable ini dilakukan pada tanggal 20 dan 21 Oktober 2018 di Laboratorium Fisika Jurusan Pendidikan Fisika Fakultas Keguruan dan Ilmu Pendidikan Universitas Syiah Kuala Banda Aceh. Data dianalisis secara teoritis berdasarkan data eksperimen dengan menetukan kondisi pada setiap siklus percobaan. Hasil penelitian AC portable tanpa mengunakan bahan kimia yang mengandung chloro flouro carbon (CFC) atau yang di sebut dengan freon dapat menurunkan suhu ruangan ukuran 3x4 m2 dengan besar perbedaan suhu sebesar 2 0C.
Co-Authors A Halim Devi Rehan Elisa Elisa Yusrizal Yusrizal