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All Journal Optika : Jurnal Pendidikan Fisika Journal of Innovative Physics Education Research
Dede Ardila
Universitas Sultan Ageng Tirtayasa
Astronomy Earth & Planetary Sciences Education Physics

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PERBANDINGAN PENGARUH CARBON DOTS DARI KULIT PARE DAN JAGUNG PADA PERTUMBUHAN BAYAM Khafilah Hendra Yani; Nelly Apriliani; Rahmat Firman Septiyanto; Tresna Galih Sukma Suryana; Jesica Amelda; Tatmimatul Hasanah; Dede Ardila
OPTIKA: Jurnal Pendidikan Fisika Vol. 10 No. 1 (2026): OPTIKA: Jurnal Pendidikan Fisika
Publisher : Department of Physics Education, Faculty of Teacher Training and Education, Universitas Flores

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/optika.v10i1.7994

Abstract

Penelitian ini bertujuan membandingkan pengaruh carbon dots (C-dots) dari kulit pare dan kulit jagung terhadap pertumbuhan tanaman bayam (Amaranthus sp.) pada konsentrasi 0,5 g/L dan 1 g/L. C-dots disintesis menggunakan metode pemanasan oven pada suhu 250°C selama 40 menit, kemudian diaplikasikan dengan penyiraman selama 7 hari. Parameter pertumbuhan yang diamati adalah tinggi tanaman. Hasil menunjukkan bahwa kedua jenis C-dots meningkatkan pertumbuhan bayam dibandingkan kontrol (aquades). Perlakuan C-dots kulit jagung 0,5 g/L menghasilkan pertumbuhan tertinggi (2,0 cm pada hari ke-7), diikuti oleh C-dots kulit pare 1 g/L (1,9 cm) dan kulit jagung 1 g/L (1,9 cm). Pengaruh C-dots bersifat tergantung dosis (dose-dependent), di mana konsentrasi optimal bergantung pada sumber biomassa. Kesimpulannya, C-dots dari kulit pare dan jagung berpotensi sebagai biostimulan ramah lingkungan, dengan kulit jagung 0,5 g/L sebagai perlakuan terbaik dalam penelitian ini.
The Influence of Physics Teachers' Learning Methods on Learning Outcomes in Students Naomi Setyaningsih; Silmi Kapah; Rizka Apriliyani; Nathan Alexander Silalahi; Dede Ardila; Yourie Fadilah; Fajar Maulana; Anggi Elisabeth; Indri Sari Utami
Journal of Innovative Physics Education Research Vol. 1 No. 2 (2025): Journal of Innovative Physics Education Research
Publisher : CV. Dharma Samakta Edukhatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61142/jiper.v1i2.304

Abstract

This study aims to analyze the differences in physics learning outcomes between students who are taught with game-based learning, experimental, and cooperative learning methods. The research method used a pseudo-experimental design with three treatment groups. Participants consisted of 33 students in class X who were given 3 learning method treatments: game-based learning, experimentation, and cooperative learning. Data was collected through learning outcome tests and interviews with teachers and students. Statistical analysis using one-way ANOVA showed a very significant difference between the three methods (F=53.03; p=3.06E-16). The highest average learning outcomes were achieved by the game-based learning group (81.82), followed by experimentation (87.58), and cooperative learning (93.3). The results of the interviews revealed that the experimental method was preferred by students because it was interactive and contextual. This study concludes that the selection of innovative learning methods in accordance with the characteristics of the material can significantly improve students' physics learning outcomes.
Co-Authors Anggi Elisabeth Fajar Maulana Indri Sari Utami Jesica Amelda Khafilah Hendra Yani Naomi Setyaningsih Nathan Alexander Silalahi Nelly Apriliani Rahmat Firman Septiyanto, Rahmat Firman Rizka Apriliyani Silmi Kapah Tatmimatul Hasanah Tresna Galih Sukma Suryana Yourie Fadilah