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All Journal Harmoni Sosial: Jurnal Pendidikan IPS Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) JAWI : Journal of Southeast Asia Islamic Contemporary Issues KOVALEN: Jurnal Riset Kimia Jurnal Pendidikan Kimia FKIP Universitas Halu Oleo Pendas : Jurnah Ilmiah Pendidikan Dasar Akta Kimia Indonesia Chemistry Indonesian Journal of Chemical Research JURNAL PENDIDIKAN TAMBUSAI Khatulistiwa: Journal of Islamic Studies Hydrogen: Jurnal Kependidikan Kimia Jurnal Paris Langkis TOFEDU: The Future of Education Journal Sains: Jurnal Kimia & Pendidikan Kimia Jurnal Sains dan Kesehatan Jurnal Pendidikan Progresif
La Rudi
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Social Sciences Other

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Application of cooperative learning type Quick on the Draw on buffer solution material to improve learning outcomes of Class XI students Rudi, La; Widiyanto, Brian Tri; Saefuddin, Saefuddin; Esnawi, Esnawi
Jurnal Pendidikan dan Pembelajaran Kimia Vol 12, No 3 (2023): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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

Abstract

This research aims to determine student learning outcomes, determine effectiveness and determine student responses to the quick on the draw type cooperative learning model on buffer solution material. The sample of this research was class XI MIPA 3 students using simple random sampling. The method used is quasi-experimental with a Randomized Control Group Pretest-Posttest Design. From the research results, it was found that the learning outcomes of students who were taught using the quick on the draw type cooperative learning model on buffer solution material were obtained on average 79.68 while the control class was 77.42 with completeness of learning outcomes based on the KKM score of 83.9% for the experimental and 61.74% for the control class. Based on the analysis of the N-gain value, it was found that the quick on the draw learning model was effective for use in buffer solution material, this was because the N-gain value for the experimental class reached the high category of 35% while the control class was 19%. The results of the analysis of student response questionnaires showed that 68% of students said they were very interested in the quick on the draw learning model because learning was more fun, and 87% of students were very motivated in learning. DOI: 10.23960/jppk.v12.i3.23.11 
Aktivitas Antioksidan Ekstrak Metanol Ampas Sagu Rawa (Metroxylon sp): Antioxidant Activity of Methanol Extract Swamp Sago Pulp (Metroxylon sp) Nurdin, Widhi Mulya; Rahman, Abraham; Rudi, La
Jurnal Sains dan Kesehatan Vol. 6 No. 4 (2024): J. Sains Kes.
Publisher : Fakultas Farmasi, Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25026/jsk.v6i4.2247

Abstract

This study aimed to determine the content of secondary metabolites contained in the methanol extract of swamp sago pulp (Metroxylon sp) and total phenolic which determines the antioxidant activity of swamp sago pulp (Metroxylon sp). Methanol extract of swamp sago pulp was obtained by maceration method. Total phenolic content was determined by folin-ciocalteu method and antioxidant activity determination using DPPH method. Methanol extract of swamp sago pulp (Metroxylon sp) was identified for flavonoid compounds, tannins, alkaloids and phenolic compounds. Methanol extract of swamp sago pulp has a total phenolic content of 73.90 ± 0.073 mg GAE/g with very strong antioxidant activity (IC50 17.38 ppm). Keywords:          Antioxidant, Metroxylon sp, Phytochemical, Phenolic   Abstrak Penelitian ini bertujuan untuk mengetahui kandungan metabolit sekunder yang terdapat dalam ekstrak metanol ampas sagu rawa (Metroxylon sp) serta total fenolik yang menentukan  aktivitas antioksidan pada ampas sagu rawa (Metroxylon sp). Ekstrak metanol ampas sagu rawa diperoleh dengan metode maserasi. Kandungan total fenolik ditentukan dengan metode folin-ciocalteu dan penentuan aktivitas antioksidan menggunakan metode DPPH. Ekstrak metanol ampas sagu rawa (Metroxylon sp) teridentifikasi mengandung golongan senyawa flavonoid, tanin, alkaloid dan golongan senyawa fenolik. Ekstrak metanol ampas sagu rawa memiliki kandungan fenolik total sebesar 149,81 ± 0,010 mg GAE/g dengan aktivitas antioksidan yang sangat kuat (IC50 17,38 ppm). Kata Kunci:         Antioksidan, Metroxylon sp, Fitokimia, Fenolik
Development of Interactive Learning Media Based on a 2-Dimensional Virtual Laboratory on Electrochemical Materials Joko, Neneng Andriani; Rudi, La; Arsyad, Muhammad
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 1 (2025): February 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i1.14853

Abstract

This study aims to analyze the feasibility of interactive learning media based on a 2D virtual laboratory for electrochemistry material and to examine students' responses to its use. The media was designed as a solution to address the limitations of laboratory equipment and materials often encountered in schools. The research method employed was Research and Development (R&D) using the ADDIE development model (Analysis, Design, Development, Implementation, Evaluation). The media’s validity was analyzed using Aiken’s V content validity, involving three expert validators. The results of the analysis indicated a validity score of 0.86, which falls into the high category, demonstrating that the media is feasible for use. Student responses to the media were also analyzed, yielding an overall quality percentage of 75.98%, classified as good. Based on these findings, the learning media is considered effective and applicable in the teaching and learning process for electrochemistry materials to enhance students' conceptual understanding and practical skills.
The Conceptual and Mathematical Difficulties in Solving Reaction Rate Problems: A Diagnostic Study of Grade XI Students Fajriani, Nur; Rudi, La; Esnawi, Esnawi
The Future of Education Journal Vol 5 No 1 (2026)
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah Yayasan Pendidikan Tumpuan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61445/tofedu.v5i1.1624

Abstract

This study aims to analyze students’ conceptual and mathematical difficulties in solving chemistry problems on the topic of reaction rates. The research employed a descriptive quantitative approach with 27 eleventh-grade science students from SMA Negeri 12 Kendari as the subjects. The research instrument was a written diagnostic test designed to identify students’ conceptual and mathematical difficulties based on learning indicators for reaction rates. The data were analyzed by calculating the percentage levels of students’ difficulties for each indicator as well as the average difficulty for each aspect. The results show that, in the conceptual aspect, students’ difficulties fall into the moderate category with an average percentage of 46%, with the highest difficulty found in the indicator of relating changes in concentration to time (55%). In the mathematical aspect, students’ difficulties range from moderate to high, with an average percentage of 52%, where the highest difficulty occurs in the indicator of applying reaction rate formulas (65%). These findings indicate that students’ mathematical difficulties tend to be more dominant than their conceptual difficulties; therefore, instruction on reaction rates should be designed to emphasize a balanced integration of conceptual understanding and computational skills.
Implementasikan Metode Cerita dalam Menanamkan Pemahaman Sosial Budaya Pada Siswa Kelas III SD Negeri 1 Lakambau Sudiah, Lismawati; Rudi, La; Trisno, Muhamad
Jurnal Pendidikan Tambusai Vol. 10 No. 1 (2026)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v10i1.36956

Abstract

Penelitian ini bertujuan untuk mengimplementasikan Metode Cerita Dalam Menanamkan Pemahaman Sosial Budaya Pada Siswa Kelas III SD Negeri 1 Lakambau.Rancangan penelitian ini menggunakan data kualitatif. Sampel dalam penelitian ini adalah guru dan siswa kelas III di SD Negeri 1 Lakambau. Pengumpulan data dalam penelitian ini menggunakan observasi, wawancara dan dokumentasi. Hasil penelitian ini adalah meningkatkan pemahaman sosial budaya melalui penerapan metode cerita siswa kelas III SD Negeri 1 Lakambau dapat membentuk tentang keberagaman budaya, sikap toleransi terhadap teman dari budaya berbeda, kerja sama sosial dalam kelompok, serta perilaku sesuai norma sosial. Selain itu, kemampuan siswa dalam menceritakan kembali cerita budaya dengan runtut dan memahami nilai moral juga mengalami peningkatan signifikan.
Identifikasi dan Uji Aktivitas Antioksidan Senyawa Metabolit Sekunder Ekstrak Tanaman Cleome viscosa L: Identification and Antioxidants Activity Tests of Secondary Metabolite Compounds of Clome viscosa L. Plant Extracts Imran; Laily Nurliana; Muh. Natsir; Nohong; La Ode Abd Kadir; La Rudi; Ruslan; Thamrin Azis
KOVALEN: Jurnal Riset Kimia Vol. 9 No. 1 (2023): April Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2023.v9.i1.16340

Abstract

Cleome viscosa L. has been used empirically by people on the island to treat diseases that have clinical symptoms such as malaria (fever, sweating, chills, and muscle aches). The purpose of this study was to determine the class of secondary metabolites and antioxidant activity. The extraction was carried out using the maceration method, while the fractionation was carried out using the separating funnel. The secondary metabolites found in the Cleome viscosa L. plant extract are alkaloids, flavonoids, steroids, terpenoids, tannins, and saponins. Antioxidant test conducted by DPPH method showed that the positive control of ascorbic acid and methanol extract obtained IC50 values of 3.86 ppm and 37.4 ppm, respectively.
EFEKTIVITAS MODUL AJAR BERBASIS DEEP LEARNING DENGAN MODEL PEMBELAJARAN PROJECT BASED LEARNING (PJBL) PADA SISWA KELAS XI SMAN 8 KENDARI MATERI ASAM BASA Astin; La Rudi; Nurlansi
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Public
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.53131

Abstract

Chemistry learning at the high school level often faces challenges due to conventional methods that rely on one-way lectures and routine, meaningless exercises, which hinder students' conceptual understanding of abstract topics like acid-base. This study aimed to examine the effectiveness, student activities, and responses toward the use of a Deep Learning-based Teaching Module integrated with the Project-Based Learning (PjBL) model for eleventh-grade students at SMAN 8 Kendari on acid-base material. This quantitative research employed a quasi-experimental design with a Control Group Pretest-Posttest structure. The sample was selected using purposive sampling, consisting of 31 students in class XI.2 as the experimental group and 31 students in class XI.3 as the control group. Data were collected through cognitive pretests and posttests, learning activity observation sheets, and affective response questionnaires. The results showed a significant increase in learning outcomes; the experimental group achieved a sharp increase in posttest average score to 86.12 with a 100% classical pass rate, while the control group only reached an average of 64.35 with a 48.38% pass rate. Furthermore, the Normalized Gain (N-gain) analysis confirmed that the deep learning-based module was highly effective, yielding an average N-gain of 77.22% (Effective category) compared to the control group's 47.50% (Less Effective category). This academic success was strongly supported by an excellent student learning activity average of 91.98% and highly positive affective responses across mindful, meaningful, and joyful learning aspects.
Co-Authors ., Asriyanti Abd. Rasyid Syamsuri Abraham Rahman Aceng Haetami, Aceng Arham, Laode Arman Arman Arni Fauzia Rante Asria Asria Astin Azmil, Mimil B. Wahyono, Sugeng Darmawansyah, Tely Esnawi, Esnawi Fahyuddin Fahyuddin, Fahyuddin Fajriani, Nur Farida Hanum Fitriyanti Fitriyanti Hanisu, Hanisu Hesti Husain Haikal I Gusti Bagus Wiksuana Imran Joko, Neneng Andriani Karim Karim, Karim La Harimu La Ode Abd Kadir Laily Nurliana Marhadi, Muh Alim Marhadi, Muh. Ali Masdiana Masdiana Mimil Azmil Muh. Natsir Muhammad Alim Marhadi Muhammad Arsyad Muhammad Rivai Muna Erna Wati Murlia, Sitti Murlia, Sitti Musta, Rustam Nohong Nurdin, Widhi Mulya Nurlansi Nurmiati, Euis Nurpila, Nurpila Rahman, Abraham Rahmanpiu Rante, Arni Fauziah Risman, Kadar Rizal Rizal Rufi'i Ruslan Saefuddin Saefuddin Said Karamaullah Santoso, Giswa Ayu Pratiwi Sari Novi Delpia Setiawan, Wa Ode Nining Setiyawan, Wa Ode Nining Shuid, Ahmad Naqib bin Silvia Sudiah, Lismawati THAMRIN AZIS Trisno, Muhamad Wahyono, Sugeng B Widiyanto, Brian Tri