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All Journal Natural: Jurnal Ilmiah Pendidikan IPA Agroindustrial Journal
Elfiana, Nia
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering Social Sciences

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Studi Komparatif Literasi Saintifik Guided Inquiry VS Free Inquiry Pada Materi Zat dan Perubahannya Elfiana, Nia; Kusuma, Mobinta; Widiyanto, Bayu
N A T U R A L: Jurnal Ilmiah Pendidikan IPA Vol 11 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/natural.v11i2.18742

Abstract

This research aims to compare the influence of guided inquiry and free inquiry models on scientific literacy abilities. The method used in this research is counterbalanced with a one group pretest-posttest design. The population in this study were students in class The sampling technique is purposive sampling. Data collection techniques are tests (pretest-posttest) and non-tests. The data analysis used was the paired sample t-test, Cohen's d effect size test with the help of IBM SPSS V.25 software. The research results show that the paired sample t-test states that Ha is accepted, meaning there is a difference in scientific literacy abilities with the guided inquiry and free inquiry models with sig, 0.000. The Cohen's d test in the guided inquiry model treatment class obtained a value of 1.09, this score was higher compared to students who used the free inquiry model with a Cohen's d value of 0.12. The results of data analysis show that the Guided Inquiry model has more influence on students' scientific literacy abilities compared to the Free Inquiry model.
Study of Land Productivity in Composting Process of Tea Solid Waste at PT. Gunung Slamat Tafrijiyah, Antika; Widiyanto, Bayu; Elfiana, Nia
Agroindustrial Journal Vol 10, No 2 (2023)
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/aij.v10i1.89373

Abstract

PT. Gunung Slamat, as a company operating in the tea processing industry, was founded by the Sosrodjojo family. This scientific article aims to analyze land productivity in composting solid tea waste at PT. Gunung Slamat by considering land area, waste processing capacity, and providing recommendations for solutions that can significantly increase the productivity of solid tea waste processing land. The research adopts a phenomenological approach to obtain the required data. Phenomenology is defined as a type of research that seeks to analyze descriptively and introspectively various forms of human consciousness and experience. Data obtained from quantitative observations will cover various aspects such as the amount of compost produced, the time required to process waste into compost, which will then be collected and analyzed. The compost produced from waste processing at PT. Gunung Slamat is used as fertilizer within the company's environment and distributed to local farmers, benefiting both the environment and the local community. This compost product is not sold because PT. Gunung Slamat focuses more on selling tea products. In waste processing, several issues have been identified, including a lack of suitable technology for utilizing tea waste. The research findings indicate that land productivity in composting solid tea waste fluctuates during the study period, with changes associated with various factors such as waste quantity, weather, and management practices. Further evaluation of the factors influencing land productivity, along with the implementation of more advanced technology, can enhance efficiency and have a positive impact on the environment.
Co-Authors Bayu Widiyanto Mobinta Kusuma Tafrijiyah, Antika