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Persepsi Siswa terhadap Model Pembelajaran RADEC dalam Meningkatkan Kemampuan Berpikir Kritis di SMP Achmad Choirul Fatikhin; Mohammad Budiyanto; Ahmad Qosyim
JURNAL PENELITIAN PENDIDIKAN MATEMATIKA DAN SAINS Vol. 8 No. 1 (2024): JPPMS Vol. 8 No. 1 Tahun 2024
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppms.v8n1.p7-11

Abstract

This study aims to describe students' perceptions of the RADEC (Read, Answer, Discuss, Explain, Create) learning model in enhancing critical thinking skills at junior high school level. Employing a quantitative descriptive approach, the research involved 34 eighth-grade students from SMPN 54 Surabaya as participants. Data collection utilized a validated student response questionnaire designed to assess various aspects of the RADEC model. Collected data were analyzed using descriptive statistical techniques, including mean calculations, frequencies, and percentages. The findings indicate that students responded positively to the implementation of the RADEC model, with an average percentage response of 96.51%, indicating very high acceptance. These results affirm that the RADEC model is effective in enhancing learning motivation, active student participation, and ease of understanding the material. Furthermore, the model successfully enhances students' critical thinking skills, aligning with the primary aim of the study. The implications of this research support further development and implementation of the RADEC model within the educational context of Indonesia, aimed at strengthening the quality of learning at the junior high school level.
Studi Literatur: Efektivitas Daun Mimba sebagai Pestisida Nabati Pengusir Ulat Grayak pada Tanaman Jagung: pestisida nabati; mimba; ulat grayak; tanaman jagung Achmad Choirul Fatikhin; Rosdiana , Laily; Dian Roqobih, Fikky
innofarm Vol 25 No 2 (2023): JURNAL INNOFARM : Jurnal Inovasi Petanian
Publisher : FAKULTAS PERTANIAN UNIVERSITAS SLAMET RIYADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33061/innofarm.v25i2.9065

Abstract

This study aimed to investigate the use of botanical pesticides from Neem (Azadirachta indica A. Juss.) as an alternative control measure for fall armyworm (Spodoptera frugiperda) on maize plants. Botanical pesticides had the potential to replace chemical pesticides in efforts to reduce negative impacts on the environment and human health. This study used a literature review method with secondary data obtained from Science and Technology Index (SINTA), Google Scholar, Research Gate, IOP Science, and Science Direct databases, covering the period of 2015-2023, using keywords such as botanical pesticides, Neem, and fall armyworm. The results of the study indicated that the use of Neem extract (Azadirachta indica) as a botanical insecticide was effective and environmentally friendly in controlling fall armyworm infestation on maize plants. Neem oil spray was shown to reduce fall armyworm infestation in maize plants in several studies. Natural chemical compounds in Neem such as Azadirachtin, salannin, meliantriol, and Nimbin had insecticidal effects, inhibiting pest insect growth, reducing feeding behavior, reducing egg production and hatching, and increasing mortality. The use of botanical pesticides from Neem (Azadirachta indica A. Juss.) had the potential as an effective and environmentally friendly alternative for fall armyworm control on maize plants. However, further research was needed to optimize the use of botanical pesticides from Neem in controlling fall armyworm and evaluating their impacts on the environment and human health.