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Relevance and Consistency of Lithium Application Learning Media for High School Students on Chemical Equilibrium Material Dewi Masyitha; Afadil Afadil
Jurnal Akademika Kimia Vol. 11 No. 4 (2022)
Publisher : Universitas Tadulako

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

Abstract

Conditions of the Covid-19 pandemic require teachers and students to innovate starting from the preparation, process, and assessment of learning. This study aims to design and determine the relevance and consistency of Lithium application learning media for high school students on chemical equilibrium in the form of e-modules as a solution to reduce misconceptions. This type of research is a part of Research and Development (R&D) starting from product design to determining its theoretical relevance and consistency by experts. The product produced is in the form of an e-module on chemical balance material using Android with the Lithium application which is used by students in online learning during the Covid-19 pandemic. The instrument used was a questionnaire on the feasibility of learning media, the suitability of the material, and the Lithium application. The results of the evaluation of the media expert validator and the material expert respectively obtained the value of relevance and consistency of 3.15 (valid); 3.00 (valid); and 3.65 (very valid). This means that the Lithium application can be used as an online learning medium by utilizing Android as a solution to reduce high school students' misconceptions of chemical equilibrium material.
Utilization of Hyperdocs in Online Learning Models on Student Learning Outcomes Hasmawati Hasmawati; Daud K. Walanda; Afadil Afadil; Kasmudin Mustapa; Detris Poba
Jurnal Akademika Kimia Vol. 11 No. 4 (2022)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2022.v11.i4.pp261-265

Abstract

This study aims to improve student learning outcomes through online learning models by utilizing hyperdocs on buffer solution material in class XI MAN 1 Palu City. This type of research uses a quasi-experiment with a pretest and posttest Group Design. Quantitative descriptive research with mixed methods and sampling by purposive sampling. The sample in this study were students of class XI MIPA 1 as the experimental class and XI MIPA 3 as the control class. The instrument used in this study was a learning achievement test totaling 16 multiple-choice question numbers. The research results were obtained from both classes, namely for the experimental class of 81.14 and the control class of 77.05. Learning outcomes were analyzed by testing the effect size for the experimental class, namely 1.2 (Very Large) and 1.0 (Large) for the control class. Based on the results of the study it can be concluded that the online learning model by utilizing hyperdocs in class XI MAN 1 Palu City students can improve student learning outcomes.
THE UTILIZATION OF DURIAN PEELS (Durio zibethinus) FOR THE MANUFACTURING OF CHARCOAL BRIQUETTES AS ALTERNATIVE FUEL Sitti Rahmawati; Rabasia; Afadil; Suherman; Tri Santoso; Vivi Diah Sangkota; Paulus Hengky Abram
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 13 No 1 (2023): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.13.1.76-87

Abstract

Kulit durian adalah limbah biomassa yang dapat dimanfaatkan sebagai bahan bakar alternatif menjadi briket arang. Kulit durian mengandung bahan yang mudah terbakar yaitu selulosa yang tinggi (50%-60%) dan lignin (5%) serta pati yang rendah (5%). Penelitian ini bertujuan untuk mengetahui karakteristik briket arang dari limbah kulit durian menggunakan perekat dari pati sagu sebagai bahan bakar alternatif. Perekat yang digunakan adalah perekat dari tepung sagu yaitu 3% dari berat arang yang digunakan. Dalam penelitian ini digunakan arang sebanyak 500 g, sehingga bahan perekat yang digunakan adalah 15 g. Hasil pengujian mutu produk briket berbahan baku kulit durian diperoleh nilai kalor (5189.128 kal/g), nilai kadar air (3,6044%), nilai kadar abu (3,5643%), nilai kadar zat menguap ( 21,1273%), dan nilai kadar karbon terikat (69,2279%), kerapatan (0,4778 g/cm3), laju pembakaran (0,22 g/sekon). Briket yang dihasilkan dari limbah kulit durian dengan menggunakan pati dari sagu sebagai perekat dapat dijadikan sebagai bahan bakar alternatif yang ramah lingkungan
Teachers' Candidates’ Perceptions and Their Knowledge of 21st-Century Skills Dewi Satria Ahmar; Muhammad Fath Azzajjad; Lilies Tangge; Mohammad Jamhari; Ratman; Afadil
EduLine: Journal of Education and Learning Innovation Vol. 3 No. 1 (2023)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.eduline1698

Abstract

The purpose of this study was to analyze the perceptions of teachers' candidates’ facing 21st-century skills. This research is a survey research, survey research activities carried out on students of Universitas Sembilanbelas November Kolaka from the Chemistry Education S-1 in 3 different batches. Data collection and collection were carried out from January to June 2021. The instrument is in the form of student perceptions in the form of 12 statements and 10 questions. The number of respondents who filled out the questionnaire was 40 people. The data analysis process was carried out by measuring the percentage of each statement and question. obtained information on 4C (communication, collaboration, critical thinking, and creativity) still obtained weaknesses in the level of understanding of the Knowledge of creative and innovative thinking, namely 15 respondents (37.5%) and the concept of understanding the knowledge of the teacher's social competence, namely 14 respondents (35%). The results of the study are taken into consideration for the learning process in courses related to the knowledge base of becoming a teacher, which is important to be carried out contextually in the process of direct practice in a formal environment in a measurable and sustainable manner.
Identifikasi Pemahaman Konsep dan Self Efficacy Siswa pada Materi Struktur Atom dan Sistem Periodik Unsur Nurwahyuni Nurwahyuni; Sri Hastuti Virgianti; Afadil Afadil
Media Eksakta Vol 19 No 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v19i1.1083

Abstract

Understanding the concept is a process in which students are able to understand the information obtained, both the definition, nature and description of a concept so that they are able to construct the concept. Self Efficacy is the ability of individuals to organize the actions needed for certain achievements. This study aims to (1) describe students' conceptual understanding of atomic structure material and the periodic system of elements. (2) describe student self-efficacy in atomic structure material and the periodic system of elements. The type of research used in this study was descriptive research with a quantitative approach. The instruments used in this study were three-tier questions and self-efficacy questionnaires. This research was conducted at SMAN 4 Palu in class X MIPA students. The results showed that students' understanding of concepts in atomic structure material and the periodic system of elements averaged the percentage of students who understood the concept of 34.35% classified as understanding the concept of the low category, students who did not understand the concept of 24.1% were in the low category while students who experienced a misconception of 41.35% in the sufficient category. The results of student self-efficacy research show that student self-efficacy is good because most are in the high category of 45 students (75%), the sufficient category is 15 students (25%).
Analisis Kemampuan Berpikir Kreatif Siswa pada Materi Hukum Dasar Ilmu Kimia di Masa Pandemi Covid-19 Siti Hajar; Minarni Rama Jura; Kasmudin Mustapa; Afadil Afadil
JURNAL BANUA OGE TADULAKO Vol 2 No 2 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jbot.v2i2.3712

Abstract

Penelitian ini menggunakan pendekatan deksriptif-kualitatif yang bertujuan untuk mendeksrirpsikan kemampuan berpikir kreatif siswa kelas X MIPA SMA Negeri 3 Poso pada materi hukum dasar ilmu kimia di masa pandemi covid-19. subjek penelitian ini terdiri dari 33 siswa. Instrumen pengumpulan data yang digunakan adalah tes esai berupa soal uraian kemampuan berpikir kreatif siswa pada materi hukum dasar ilmu kimia sebanyak 8 butir soal dan juga menggunakan pedoman wawancara tahap berpikir kreatif. Berdasarkan hasil penelitian dan analisis data menunjukkan bahwa persentase indikator kelancaran 43,2% dan indiaktor  keluwesan 43,7% berada pada kategori kurang kreatif, persentase  indikator kebaruan 26,5% dan  indikator elaborasi 15,2% berada pada kategori sangat kurang kreatif, sehingga dapat dikatakan bahwa kemampuan berpikir kreatif siswa SMA Negeri 3 Poso Kelas X MIPA berada pada kategori kurang kreatif, siswa perlu diberi motivasi belajar dan dibiasakan untuk mengerjakan soal-soal yang dapat menuntut berpikir kreatif pada saat pembelajaran, sehingga siswa terlatih dalam berpikir kreatif dan menghubungkan teori dengan kehidupan nyata.
Using the Reaction Rate Learning Module with a STEM Approach to Student’s Creative Thinking Ability Afadil; Sitti Rahmawati; Wahda Nur Alisa; Kasmudin Mustapa
Jurnal Pendidikan Kimia Indonesia Vol. 7 No. 1 (2023)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpki.v7i1.55637

Abstract

Creativity is one of the competitiveness in the 21st century. The problems faced by many students are that they do not understand the material in the handbook which causes low creative thinking skills, one of the alternatives in learning this century is the STEM approach. This study aims to determine students' creative thinking skills using the reaction rate learning module with the STEM approach through Google Classroom. The type of research used was pre-experimental with one group pretest-posttest design. Data on the results of students' creative thinking abilities were taken using a creative thinking test given before and after learning. The results showed that students' creative thinking abilities After implementing the reaction rate learning module with the STEM approach through Google Classroom, students' creative thinking abilities in aspects of fluent and original thinking were in the very high category, while the flexible and detailed thinking category was in the high category with an average presentation of the four aspects are in the high category, namely 67.1% and the average N-Gain value of 0.59 is in the medium category. It can be concluded that there is an increase in students' creative thinking skills.
Analisis Perubahan Konseptual Mahasiswa Pada Materi Kimia Larutan Melalui Penerapan Model Pembelajaran PS-Trilogi Berorientasi Kearifan Lokal Afadil; Diah, Anang WM
Jurnal Jejaring Matematika dan Sains Vol. 1 No. 1 (2019): Edisi Juni 2019
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.v1i1.133

Abstract

Jenis penelitian ini merupakan pre-experimental dengan One Group Pretest-Postest Design. Tujuan penelitian adalah untuk menganalisis perubahan konseptual mahasiswa pada materi Kimia Larutan melalui penerapan model pembelajaran PS-TRILOGI berorientasi kearifan lokal. Sampel penelitian adalah mahasiswa semester genap tahun ajaran 2017/2018 yang memprogramkan mata kuliah Kimia Dasar II pada Program Studi Pendidikan Kimia FKIP UNTAD. Teknik analisis konsepsi mahasiswa menggunakan Certainty of Response Index (CRI) berdasarkan pada suatu skala enam (0-5). Hasil analisis secara klasikal yang diperoleh bahwa penerapan model pembelajaran PS-TRILOGI berorientasi kearifan lokal mampu mereduksi Miskonsepsi (MK) mahasiwa pada materi Kimia Larutan sebesar 12,2%; mampu meningkatkan Tahu Konsep (TK) mahasiswa sebesar 26,9%; dan mampu mereduksi Tidak Tahu Konsep (TTK) mahasiswa sebesar 16,6%.
Antioxidant Activity Tests of Extract of Principle Crafts (Phaleria macrocarpa) Tri Putri; Anang W. M. Diah; Afadil Afadil
Jurnal Akademika Kimia Vol. 8 No. 3 (2019)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2019.v8.i3.pp125-129

Abstract

Phaleria macrocarpa contains secondary metabolite compounds such as alkaloids, terpenoids, saponins, polyphenols, tannins, sterols, and coumarins. Those metabolites are antioxidants and can be efficacious in the healing of various degenerative diseases such as cervical cancer and diabetes. This plant is widely grown in Tindaki Village, Parigi Mautong, Central Sulawesi. The aim of this study was to determine the antioxidant power of those phaleria macrocarpa fruit extract. This study was conducted by using maceration extraction technique with ethanol as solvent, and compound 2,2-difenil-1-picrilhidrazil (DPPH) as source of free radical, and vitamin C as the positive control. The UV-Vis spectrophotometer was used to measure the absorbance of the extract. Various concentrations of the extract used were 5 ppm, 15 ppm, 25 ppm, and 35 ppm. The results showed that the IC50 value of the fruit extract was 28.242 ppm, while the IC50 value of vitamin C was 19.302 ppm. These IC50 values show that vitamin C was a stronger antioxidant activity than the fruit extract, but the fruit extract was still as a very strong natural antioxidant category.
Differences in Learning Outcomes of Chemistry through Cooperative Learning Model Type Make a Match and Numbered Head Together on the Material of Electrolyte and Nonelectrolyte Solution of Students Class X in SMA Negeri 9 Palu Nur Qamariya; Minarni R. Jura; Afadil Afadil
Jurnal Akademika Kimia Vol. 8 No. 3 (2019)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2019.v8.i3.pp135-140

Abstract

Application of learning model is expected to build good communication between students with teachers and students with students in an effort to improve understanding of a concept. This study aimed to determine the differences in the learning outcomes of chemistry through cooperative learning model type make a match and numbered head together in the material of electrolyte and nonelectrolyte solution of students class X SMA Negeri 9 Palu. This type of research was pre-experimental with the static group pretest-posttest design. The sample used in this research was the students of class Xa (n = 23) as the first experiment 1 and students of class Xb (n = 23) as the second experiment 2 with. The result of data analysis obtained, the mean value of the experiment class 1 was 74.24 and in the experiment class 2 was 67.28. The result of hypothesis testing with t-test statistic on two side was obtained - ttable ≤ tcount ³ + ttable that was (-1.68 <3.27> +1.68 with significant level (α = 0.05) and degrees of freedom = 44. This indicates that H0 was rejected and Ha was accepted so that it can be concluded that there are differences in the students’ learning outcomes of chemistry through cooperative learning model type make a match and numbered head together in the material of electrolyte and nonelectrolyte solution of class X SMA Negeri 9 Palu.
Co-Authors AA Sudharmawan, AA Agustin Tiwow Agustina, Rizza R. T. Ahdiat, Mohammad Alimuddin, Chatifah Amran Rede Anang W. M. Diah Anang Wahid M.Diah Arda Arda Ardiansyah Asmita, Asmita Azzajjad, Muhammad Fath Badjeber, Rafiq Baharuddin Hamzah Catri, Ni Made Citra Dewi Dariati Dariati Daud Karel Walanda Detris Poba Devi, Sinta Dewi Masyitha Dewi Satria Ahmar Dewi Sri Wahyuni Dia Afrianti Sangkota, Vivi Diah, Anang WM Ebi Rahmat Indar Maya Elinich, Karen Ersa W. Lakukua Esterlina Marpaung, Meida Febryna V. Maddo Frelyana Tiro H.J, Nur Rahmadana Safitri Haeruddin Haeruddin Hajerina, Hajerina Halawa, Adrianus Hasmawati Hasmawati Imhar AR. Nailu Indasari, Indasari Irwan Irwan Jamaludin M Sakung K, Wilda Kasmudin Mustapa Kusumaningrat Lilies N Tangge Linawati Linawati Magfirah Magfirah Magfirah, Magfirah Marpaung, Meida E. Matamay, Zubair Maulidiyah, Arum Mery Napitupulu Minarni Rama Jura Minarni Rama Jura Moh. Raisul Moh. Sahril Mohammad Jamhari N. Tangge, Lilies N.Tangge, Lilies Narayanti, Putu Satya Ni Gusti Ayu Putu Eka Sri Wahyuni Nunuk Haryanti Nur Qamariya Nur Rahmah Nuriyani, Emy Nurjannah Nurjannah Nurjannah Nurjannah, Ida Nursupiamin Nursupiamin, Nursupiamin Nurwahyuni Pathuddin Paulus Hengky Abram Permata Fonna Pulukadang, Sri H. V. Purnama Ningsih Rabasia Rafiah Rahayu, Ratna Dwi Rahmawat, Sitti Ramadani, Ersa Ratman Ratman Ratman Reny, Reny Reskywanti, Reskywanti Rina Andriana Riski, Fahrul Roslina Roslina, Roslina S, Ni Putu Murniasih S. Ahmar, Dewi Sangkota, Vivi Dia A. Sangkota, Vivi Diah Sarintan Nurcahyati Kaharu Sarmilah Sarmilah Sely Artasasta Lawongo Siti Aminah Siti Hajar Siti Nuryanti Siti Rabiatul Adawiyah, Siti Rabiatul Sitti Aminah Sitti Rahmawati Sri Hastuti Virgianti Sri Hastuti Virgianti Pulukadang Sri Mulyani Sabang Sri Poedjiastoeti Suciati, Indah Suherman Suherman Suherman Suherman, Suherman Sukmawati Sukmawati Supriyatman, Supriyatman Suyono Suyono Tahril Tiro, Frelyana Tri Putri Tri Santoso Tri Santoso Tri Santoso Unggul Wahyono Vivin Elfitriyah H.S Wahda Nur Alisa Wahyuni H. Mailili Wildana Wildana, Wildana Windia Hadi, Windia WM Diah, Anang Yuli Nurmayanti Zulhan, Zulhan