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Using The TGT Learning Model to Improve Student Learning Outcomes in Colloidal Systems Material at Sman 1 Lhoknga Aceh Besar Mardhiah, Ainun; Adiska, Dessi Nur; Astryna, Syarifah Yanti; Rahmi, Rauzatur
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 2 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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The learning model is one of the important things that must be prepared by an educator in learning process. One effort to achieve value in understanding concepts and learning outcomes can be done by implementing active, creative, fun and effective learning models in the classroom. The innovation that can be carried out is by implementing the Teams Games Tournaments (TGT) learning model. The purpose of this research to improve learning outcomes, determine student activities and responses to the subject of colloid systems using the teams games torunament (TGT) learning model in class XI at SMAN 1 Lhoknga Aceh Besar. The design used in this research was nonequivalent control group design. The sampling technique used was purposive sampling. The subjects of this research were class XI IA1 and class XI IA2, totaling 24 students. Research data was obtained from learning outcomes tests. observation of student activities, and provide student response questionnaires. The research results show that 1) The use of the teams games tournament (TGT) learning model can improve student learning outcomes in the Colloid System material at SMAN 1 Lhoknga Aceh Besar with an average score of 79,54%. 2) Student activity in teaching and learning activities through the use of the teams games tournament (TGT) learning model at the first meeting obtained a percentage of 75%, while at the second meeting student activity increased with a percentage of 90%. 3) Student responses to the use of the teams games tournament (TGT) learning model in the questionnaire distributed at the end of the lesson were obtained sequentially, namely strongly agree 28%, agree 58% and disagree 14%.Keywords: Teams Games Tournament (TGT) learning model, learning outcomes, colloid system DOI: 10.23960/jppk.v13i2.29811

Penerapan Pendekatan Pembelajaran Scientific (Scientific Approach) untuk Meningkatkan Hasil Belajar Siswa Kelas XI IPA2 pada Materi Hidrokarbon di SMA Negeri 9 Tunas Bangsa Banda Aceh Nuhari, Insan; Nur Adiska, Desi; Rahmi, Rauzatur; Mahyuna; Nurmasyitah
Journal of Multidisciplinary Inquiry in Science, Technology and Educational Research Vol. 1 No. 4 (2024): AGUSTUS-OKTOBER 2024
Publisher : UNIVERSITAS SERAMBI MEKKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/mister.v1i4.2213

Research has been conducted entitled "Application of the Scientific Learning Approach to Improve the Learning Outcomes of Class XI IPA2 Students on Hydrocarbon Material at SMA Negeri 9 Tunas Bangsa Banda Aceh". This research aims to improve student learning outcomes, student activities and determine student responses. The subjects of this research were students of SMA Negeri 9 Banda Aceh in class XI IPA2, totaling 30 students consisting of 17 male students and 13 female students. This type of research is qualitative descriptive research. To determine student learning outcomes on hydrocarbon material, a post-test was carried out at the end of the lesson, observation of student activity through student activity observation sheets and student responses obtained through questionnaires. Based on the research results, the completeness of student learning outcomes through post test questions at the end of learning using a scientific learning approach (scientific approach) on hydrocarbon material was 86.66%, compared to the results before the learning process started, namely 36.6%, so it can be concluded that the application of a scientific learning approach (Scientific Approach) is able to improve learning outcomes. Student activities have also shown an individual level of completion, namely 86.60%. In general, students have followed learning procedures well and provided good overall responses, positive student responses were 95.83% and negative student responses were 4.17%.

Using The TGT Learning Model to Improve Student Learning Outcomes in Colloidal Systems Material at Sman 1 Lhoknga Aceh Besar Mardhiah, Ainun; Adiska, Dessi Nur; Astryna, Syarifah Yanti; Rahmi, Rauzatur
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 2 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

The learning model is one of the important things that must be prepared by an educator in learning process. One effort to achieve value in understanding concepts and learning outcomes can be done by implementing active, creative, fun and effective learning models in the classroom. The innovation that can be carried out is by implementing the Teams Games Tournaments (TGT) learning model. The purpose of this research to improve learning outcomes, determine student activities and responses to the subject of colloid systems using the teams games torunament (TGT) learning model in class XI at SMAN 1 Lhoknga Aceh Besar. The design used in this research was nonequivalent control group design. The sampling technique used was purposive sampling. The subjects of this research were class XI IA1 and class XI IA2, totaling 24 students. Research data was obtained from learning outcomes tests. observation of student activities, and provide student response questionnaires. The research results show that 1) The use of the teams games tournament (TGT) learning model can improve student learning outcomes in the Colloid System material at SMAN 1 Lhoknga Aceh Besar with an average score of 79,54%. 2) Student activity in teaching and learning activities through the use of the teams games tournament (TGT) learning model at the first meeting obtained a percentage of 75%, while at the second meeting student activity increased with a percentage of 90%. 3) Student responses to the use of the teams games tournament (TGT) learning model in the questionnaire distributed at the end of the lesson were obtained sequentially, namely strongly agree 28%, agree 58% and disagree 14%.Keywords: Teams Games Tournament (TGT) learning model, learning outcomes, colloid system DOI: 10.23960/jppk.v13i2.29811

Green Water Treatment Innovation: Utilization of Avocado Seed Skin and SODIS as an Environmentally Friendly Natural Water Purification Technology Lismarita, Lismarita; Rahmi, Rauzatur; Mahyuna, Mahyuna; Surya, Erdi
Serambi Journal of Agricultural Technology Vol 7, No 2 (2025): Desember
Publisher : Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/sjat.v7i2.10412

The availability of clean water is still a serious challenge, especially in rural areas and developing areas. This study aims to examine the innovation of natural-based water purification technology through the use of avocado seed peel as a natural coagulant combined with Solar Water Disinfection (SODIS). The method used is a literature review by analyzing scientific articles in the last ten years related to the effectiveness of avocado seed shells and SODIS in water treatment. The results of the study show that avocado seed shells contain bioactive compounds such as tannins, flavonoids, and polyphenols that function as coagulation and adsorption agents, so that they are able to reduce turbidity, color, and organic and heavy metal content in water. Meanwhile, SODIS technology has been proven to be effective in reducing microbiological contamination, particularly pathogenic bacteria, through the mechanism of UV-A radiation and temperature increase. The combination of these two methods has been proven to complement each other, where pre-treatment with avocado seed peel reduces the turbidity of water so that the penetration of UV rays in the SODIS process is more optimal. The integration of simple, cheap, and environmentally friendly methods has great potential to be applied as an alternative to sustainable clean water supply while supporting the achievement of the Sustainable Development Goals (SDGs) related to clean water and sanitation.

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