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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Unnes Science Education Journal
Purwaningsih, Indri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Application-Assisted PBL-STEM Model Hinbiodiv to Improve Students' Science Literacy in Biodiversity Material Purwaningsih, Indri; Isnaeni , Wiwi; Marianti, Aditya; Ellianawati, Ellianawati
Unnes Science Education Journal Vol. 13 No. 3 (2024): December 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v13i3.14534

Abstract

The low level of students' scientific literacy is one of the problems that needs to be solved. This study aims to analyze the application of the Hinbiodiv-assisted PBL-STEM model in improving students' scientific literacy in biodiversity material in high school. The research method used is a quasi-experimental design with a nonequivalent control group design. The research sample included class X MIPA 4 as a control class totaling 37 students and class X MIPA 1 as an experimental group totaling 34 students. The data collected were in the form of increasing students' scientific literacy by distributing questionnaires to students. The data analysis of this study used the normality test, Walcaxon test, Man Whitney test, and N-Gain test. The results showed that the Implementation of the Hinbiodiv-Assisted PBL-STEM Model could improve students' scientific literacy in the experimental class with an N-Gain value of 0.79 in the high category, while in the control class with the conventional method the N-Gain value was 0.46 in the moderate category. So it can be concluded that the application of the Hinbiodiv-Assisted PBL-STEM Model is recommended for use in biology learning in high school to improve scientific literacy.  
Pemanfaatan Mikro Organisme Lokal (MOL) pada Pembuatan Pupuk Organik Cair (POC) dengan Memanfaatkan Limbah Sayuran Wardana, Irfan Ihza; Purwaningsih, Indri; Dewi, Pramesti; Mustikaningtyas, Dewi
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.6506

Abstract

This study aims to analyse the Nitrogen and pH levels of liquid organic fertiliser (LOF) made using microlocal organisms (LMO) based on vegetable waste. The method used was an experimental method through a fermentation process carried out at the Center for Standardisation and Industrial Pollution Prevention Services (BBSPJPPI). The results showed that the LOF produced had a Nitrogen content of 0.03% and a pH of 3, which did not meet the quality standards of liquid organic fertiliser in Indonesia, namely Nitrogen content of 2-6% and a neutral to slightly acidic pH (5-7). The low Nitrogen content is due to the Nitrogen-poor composition of the vegetable waste, while the overly acidic pH is due to the prolonged fermentation time, which triggers the formation of organic acid compounds. To improve the quality of LOF, optimisation is needed in the selection of raw materials, fermentation ratio, and control of fermentation parameters such as time and temperature. This research provides recommendations for the development of higher-quality LOFs that comply with national standards.
Co-Authors Aditya Marianti Dewi Mustikaningtyas Ellianawati, Ellianawati Isnaeni , Wiwi Pramesti Dewi Wardana, Irfan Ihza