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All Journal Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) Indonesian Journal of Chemical Science and Technology
Manalu, Santa Maria
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Materials Science & Nanotechnology

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The Jasmine Plant Growth Effect Supplemented with Liquid Organic Fertilizer from Banana Peels Selly, Rini; Panjaitan, Angel Shylvia; Br. Gurusinga,, Dinda Natalisa; Khairunissa, Dira; Manalu, Santa Maria; Rahmah, Siti
Indonesian Journal of Chemical Science and Technology (IJCST) Vol 6, No 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.49362

Abstract

Liquid organic fertilizer (LOF) is a solution resulting from the decomposition of organic matter originating from plant residues, agro-industrial waste, animal waste, and human waste containing more than one nutrient. LOF can be made from liquid organic matter (liquid organic waste), by composting and providing composting activators so that a LOF that is stable and contains complete nutrients can be produced. The use of LOF has the advantage that although it is often used it does not damage the soil and plants, the use of organic waste as fertilizer can help improve soil structure and quality, because it contains nutrients and other organic matter. The process of adding different fertilizers to the plants for 10 days showed that there were different height changes for each plant. With only water, the plants only reach 0.1 cm difference in 7 days. The plants that were given LOF and NPK (Chemical Fertilizer) gained height in only 4 days with heights 15.6 cm and 16 cm respectively. The growth percentage between LOF and NPK showed a significant difference in 4 days with 0.6% and 3.2 % respectively.
Implementation of STEM Problem Based Learning Model with Quizizz and iSpring Media Towards Student Learning Outcomes in Stoichiometry Material Azizah, Meilani; Simangunsong, Garvin; Simamora, Putri Elsa; Juwita, Intan; Manalu, Santa Maria; Simanullang, Tasya Putri Haren; Purba, Jamalum
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 3 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This study aims to determine the significant differences in student learning outcomes using Quizizz Media and i-Spring Media with the STEM Problem Based Learning model on Stoichiometry material. The population in this study were students of class XI IPA at SMA Swata Sultan Iskandar Muda Meda which were divided into four classes. The research sample was students of class XI IPA selected using random cluster sampling techniques. The instrument used in this study was a test with 20 multiple choice questions. The data collected were in the form of student learning outcome ability test instruments. The results of the study were that there was a significant difference between student learning outcomes taught with the STEM-based Problem Based Learning model using Quizizz media with iSpring media with a Sig. (2-tailed) value of 0.001 ≤ 0.05.Keywords: Quizziz, iSpring, and Problem Based Learning.DOI: 10.23960/jppk.v13.i3.32334
Co-Authors AA Sudharmawan, AA Azizah, Meilani Br. Gurusinga,, Dinda Natalisa Intan Juwita, Intan Jamalum Purba Khairunissa, Dira Panjaitan, Angel Shylvia Rini Selly, Rini Simamora, Putri Elsa Simangunsong, Garvin Simanullang, Tasya Putri Haren