Article Per Year (5 Year)
p-Index From 2021 - 2026
1.817
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Pendidikan Kimia Lantanida Journal Seminar Nasional Pendidikan IPA Martabe : Jurnal Pengabdian Kepada Masyarakat LAVOISIER: Chemistry Education Journal Jurnal Pengabdian West Science Journal of The Indonesian Society of Integrated Chemistry LAVOISIER: Chemistry Education Journal Jurnal Sains dan Kesehatan Jurnal Pendidikan MIPA
Andi Suharman, Andi
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Immunology & microbiology Medicine & Pharmacology Public Health Social Sciences Other

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 12 Documents
Search

 1   2 
PEMBUATAN KARBON AKTIF DARI CANGKANG KULIT BUAH KARET (Hevea brasilliensis) Vinsiah, Rananda; Suharman, Andi; Desi, D
Jurnal Penelitian Pendidikan Kimia: Kajian Hasil Penelitian Pendidikan Kimia Vol 1, No 2 (2014)
Publisher : Jurnal Penelitian Pendidikan Kimia: Kajian Hasil Penelitian Pendidikan Kimia

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

Abstract

Penelitian ini bertujuan untuk mengetahui karakterisasi dan daya serap karbon aktif yang dibuat dari cangkang buah karet. Proses karbonisasi karbon aktif dilakukan dengan menggunakan alat furnace dengan variasi suhu yaitu 300°C, 400°C, 500°C dan 600°C.  Kemudian direndam selama ± 24 jam dengan larutan H3PO4 dengan konsentrasi 7 %. Adapun hasil karakterisasi yang didapat adalah kadar air dan volatite matter terendah dimiliki sample dengan suhu furnace 600°C sebesar 1,584694 % dan 20,31735 %. Lalu untuk kadar abu terendah dimiliki oleh sampel suhu furnace 300°C  yakni sebesar 1,793984%. Kemudian untuk daya serap maksimum terhadap metilen blue dan iodin adalah sampel suhu furnace 500°C dan 600°C yakni 592,8590 mg/g dan 14,1301 mg/g. Kondisi optimum pembuatan karbon aktif dalam penelitian ini adalah karbon aktif yang dibuat pada suhu 600°C, dimana karbon pada suhu ini memiliki kadar air sebesar 1,584694 % ; kadar abu 4,530752 % ; volatile matter 20,31735 % ; daya serap iodium 500,6268 mg/g ; dan daya serap metilen biru sebesar 14,1301 mg/g.
PENGEMBANGAN LEMBAR KERJA SISWA INTERAKTIF UNTUK PEMBELAJARAN LARUTAN ELEKTROLIT DAN NON ELEKTROLIT DI KELAS X SMA NEGERI 1 INDERALAYA Simbolon, Anita H.; Gulo, Fakhili; Suharman, Andi
Jurnal Penelitian Pendidikan Kimia: Kajian Hasil Penelitian Pendidikan Kimia Vol 2, No 1 (2015)
Publisher : Universitas Sriwijaya

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

Abstract

Pengembangan lembar kerja siswa (LKS) interaktif telah dilakukan dan diujicobakan untuk pembelajaran larutan elektrolit dan non elektrolit di kelas X SMA Negeri 1 Indralaya. LKS interaktif dikembangkan melalui tahapan Define (pendefenisian), Design (design), Develop (pengembangan) dan ujicoba Tessmer pada tahap develop. Hasil penelitian berdasarkan analisis data angket menunjukkan bahwa LKS interaktif telah valid dan layak digunakan dengan perolehan nilai analisis 4,2 dalam uji validitas materi, 4,1 dalam uji validitas media, 4 dalam uji validitas pedagogik serta 4,28 dalam ujicoba one to one dan 4,45 dalam ujicoba small group. Berdasarkan analisis tes berupa pretest dan posttest menunjukkan bahwa lembar kerja siswa interaktif telah efektif dan berpotensi meningkatkan hasil belajar siswa dengan nilai rata-rata 81,43 dan nilai N-gain score 0,54. Hasil penelitian menunjukkan bahwa pengembangan lembar kerja siswa interaktif untuk pembelajaran larutan elektrolit dan non elektrolit di kelas X SMA Negeri 1 Indralaya telah memenuhi kriteria valid, praktis, dan efektif.
Students’ Ability in Solving HOTS-Based Chemistry Problems: A Case of High School Students at Palembang City Nawawi, Effendi; Suharman, Andi; Mulyono, Budi; Ad'hiya, Eka
Jurnal Pendidikan MIPA Vol 24, No 3 (2023): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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

Abstract

Abstract: This research aims to analysis students ability in solving HOTS based chemistry problems. This research is qualitative research with a case study approach. Data collection was carried out through observation, tests and interviews. The research results show that high-level thinking skills which include the level of analytical skills have an average student achievement of 16.162%, the level of evaluation thinking skills reaches 8.937%, and the level of creative thinking skills reaches a maximum of 14.888%. score 100. Based on the interview results, it is known that students' high-level thinking abilities are relatively low because they are not used to working on HOTS questions. Therefore, it can be concluded that high-level thinking abilities need to continue to be improved, and one way to achieve this is through solving HOTS based chemistry problems. Keywords: higher order thinking, chemistry problems, case study. Abstrak: Penelitian ini bertujuan untuk mengetahui tingkat kemampuan berpikir tingkat tinggi dalam menyelesaikan permasalahan Kimia HOTS (High-Order Thinking Skills). Penelitian ini merupakan penelitian kualitatif dengan pendekatan studi kasus. Pengumpulan data dilakukan melalui observasi, tes, dan wawancara. Hasil penelitian menunjukkan bahwa keterampilan berpikir tingkat tinggi yang meliputi tingkat keterampilan analisis mempunyai rata-rata pencapaian siswa sebesar 16,162%, tingkat keterampilan berpikir evaluasi mencapai 8,937%, dan tingkat keterampilan berpikir kreatif mencapai maksimal 14,888%. skor 100. Berdasarkan hasil wawancara diketahui bahwa kemampuan berpikir tingkat tinggi siswa tergolong rendah karena belum terbiasa mengerjakan soal HOTS. Oleh karena itu, dapat disimpulkan bahwa kemampuan berpikir tingkat tinggi perlu terus ditingkatkan, dan salah satu cara untuk mencapainya adalah melalui penyelesaian soal HOTS Kimia.  Kata kunci: kemampuan berpikir tingkat tinggi, soal kimia, studi kasus.DOI: http://dx.doi.org/10.23960/jpmipa/v24i3.pp545-555
Formulasi Handbody Lotion dari Kombinasi Ekstrak Daun Jambu Biji (Psidium guajava L.) dan Virgin Coconut Oil: Formulation of Handbody Lotion from Combination of Guava Leaf Extract (Psidium guajava L.) and Virgin Coconut Oil Karolin, Cindi; Suharman, Andi; Sukaryawan, Made
Jurnal Sains dan Kesehatan Vol. 7 No. 5 (2025): J. Sains Kes.
Publisher : Fakultas Farmasi, Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25026/jsk.v7i5.2539

Abstract

Handbody lotion was formulated using guava leaf extract (Psidium guajava L.) and virgin coconut oil (VCO) as the main ingredients. The guava leaf extract was obtained through a maceration process using 96% ethanol as the solvent, resulting in a yield of 8.2%, while the VCO was produced enzymatically with a yield of 25.17%. The lotion was developed in three formula variations: F1 (5% extract, 10% VCO), F2 (6% extract, 15% VCO), and F3 (7% extract, 20% VCO). Physical characteristics were evaluated by assessing homogeneity, pH level, spreadability, viscosity, and specific gravity. The results indicated that all formulations met the quality standards in accordance with SNI 16-4399-1996. Based on the hedonic test, formula F1 was the most preferred in terms of texture, fragrance, and color. Keywords:          Formulasition, Guava leaf extract, Virgin coconut oil, Handbody lotion   Abstrak Handbody Lotion diformulasikan dengan menggunakan ekstrak daun jambu biji (Psidium guajava L.) dan virgin coconut oil (VCO) sebagai bahan utama. Ekstrak daun jambu biji diperoleh melalui proses maserasi dengan pelarut etanol 96% dan menghasilkan rendemen sebesar 8,2%, sedangkan VCO diperoleh secara enzimatis dengan rendemen sebesar 25,17%. Lotion dikembangkan dalam tiga variasi formula, yaitu F1 (5% ekstrak, 10% VCO), F2 (6% ekstrak, 15% VCO), dan F3 (7% ekstrak, 20% VCO). Pengujian terhadap karakteristik fisik dilakukan dengan menilai homogenitas, tingkat keasaman (pH), daya sebar, viskositas, serta bobot jenis sediaan. Hasil pengujian menunjukkan bahwa seluruh formulasi memenuhi standar mutu sesuai ketentuan SNI 16-4399-1996. Berdasarkan uji hedonik, formula F1 merupakan yang paling disukai dari segi tekstur, aroma, dan warna. Kata Kunci:         Formulasi, Ekstrak  jambu biji, Minyak kelapa murni, Handbody Lotion
Effectiveness of Chemistry Textbooks with Problem Based Learning to Improve Students’ Learning Outcomes in Main Group Elements Hadeli, Muhammad; Sanjaya, Sanjaya; Rachman Ibrahim, Abdul; Suharman, Andi; Ad'hiya, Eka; Kartika Sari, Diah
Jurnal Pendidikan MIPA Vol 23, No 4 (2022): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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

Abstract

This study aims to determine the effectiveness of the main group elemental chemistry textbooks based on problem based learning in improving student learning outcomes. The design of this study was a quasi-experiment with one group pretest-posttest design. The participants in this study were sixth year chemistry education students at Universitas Sriwijaya for the 2021/2022 academic year. Test instruments was implied in this research and analyzed using statistics with N-gain data. The results showed that problem-based learning teaching materials for chemistry education students were categorized as very effective with a high level of N-gainKeywords: chemistry textbooks, problem-based learning, chemistry learning outcomes.DOI: http://dx.doi.org/10.23960/jpmipa/v23i4.pp1376-1381
PENGEMBANGAN E-LKPD KALORIMETRI BERBASIS PROBLEM BASED LEARNING (PBL) MENGGUNAKAN LIVEWORKSHEETS Syarani, Meylina; Suharman, Andi; Sanjaya, Sanjaya
Lantanida Journal Vol 13 No 2 (2025): July-December 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i2.31322

Abstract

The lack of interactive teaching materials and students' difficulties in understanding concepts and calculations in calorimetry prompted the development of e-LKPD based on Problem-Based Learning (PBL) using Liveworksheets for class XI.1 students at Srijaya Negara High School, Palembang. This study aims to produce a valid, practical, and effective e-LKPD. The development follows the ADDIE model and includes Tessmer's formative evaluation stages: self-evaluation, expert review, one-to-one, small group, and field test. Data was collected through interviews with chemistry teachers, a needs analysis questionnaire administered to 35 students, a walkthrough with two experts who assessed the content, design, and pedagogical aspects, a practicality questionnaire administered to three students in the one-to-one stage and nine students in the small group stage, as well as pre-tests and post-tests administered to all 35 students. The validity test results showed an average validity score of 0.99, which falls into the very high category. The practicality of the e-LKPD in the one-to-one stage was 89.33% and in the small group stage was 91.82%. The effectiveness test results showed an N-Gain value of 0.80, which falls into the high category. Therefore, this e-LKPD is deemed valid, practical, and effective in enhancing students' understanding and engagement in calorimetry learning.
PENYULUHAN ALAT PRAKTIKUM INOVATIF UNTUK MENINGKATKAN KUALITAS PEMBELAJARAN BAGI GURU KIMIA KOTA PALEMBANG Sanjaya, Sanjaya; Ad’hiya, Eka; Sukaryawan, Made; Suharman, Andi; Kartika Sari, Diah; Hadeli L, M
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 6 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i6.2467-2472

Abstract

Salah satu tantangan yang sering dihadapi oleh guru kimia adalah minimnya ketersediaan sarana dan prasarana untuk menunjang pelaksanaan praktikum di laboratorium. Pada program studi pendidikan kimia Universitas Sriwijaya telah dilaksanakan beberapa riset/penelitian yang berkaitan dengan inovasi alat praktikum kimia. Salah satunya yaitu penelitian “Pengembangan Alat Elektroforesis Koloid Melalui Modifikasi Sumber Arus Listrik”. Oleh karena itu perlu dilakukan penyuluhan mengenai alat praktikum inovatif yang telah dikembangkan melalui riset/penelitian tersebut.  Kegiatan pengabdian ini dilakukan dalam tiga tahapan: penyampaian materi, praktik langsung, dan evaluasi. Tahap persiapan mencakup koordinasi antara pengabdian dan pihak terkait. Pada tahap pelaksanaan, materi disampaikan melalui presentasi, diikuti dengan praktik penggunaan alat elektroforesis koloid oleh peserta. Dari kegiatan pengabdian dapat disimpulkan bahwa khalayak sasaran pada mulanya terkendala melakukan praktikum dikarenakan kurangnya fasilitas. Dengan diperkenalkan dan dipraktikkan penggunaan alat praktikum inovatif, khalayak sasaran menjadi berminat dan membuat ide untuk mengembangkan alat praktikum inovatif lainnya yang sesuai dengan materi SMA. Alat praktikum inovatif ini mudah digunakan oleh guru dan dapat membuat pembelajaran menjadi lebih menyenangkan.
Penyuluhan Implementasi Pembelajaran STEM dalam Kurikulum Merdeka Belajar bagi Guru Kimia Kabupaten Banyuasin Sofia; Sofia, Sofia; W, K Anom; Suhery, Tatang; Suharman, Andi; Ad'hiya, Eka; Sari, Diah Kartika; Haryani, Maefa Eka
Jurnal Pengabdian West Science Vol 3 No 02 (2024): Jurnal Pengabdian West Science
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/jpws.v3i02.930

Abstract

Sekolah Menengah Atas (SMA) di Kabupaten Banyuasin sudah mulai menerapkan kurikulum Merdeka Belajar. Salah satu pembelajaran yang sesuai untuk digunakan oleh sekolah yang menerapkan kurikulum merdeka belajar adalah pembelajaran berbasis STEM. Pengabdian ini bertujuan untuk memberikan penyuluhan pada guru kimia SMA/SMK/MA di Kabupaten Banyuasin, Sumatera Selatan untuk mengimplementasikan Pembelajaran STEM pada Kurikulum Merdeka Belajar. Pengabdian ini dilakukan dengan metode penyuluhan dan diskusi. Beberapa hasil kerja peserta pengabdian yaitu 1) pembuatan pupuk organik cair menggunakan hasil fermentasi dari sisa/limbah kulit buah dan sayur yang dicampur dengan gula merah dan air dengan perbandingan 1:3:10. 2) pembuatan minyak kelapa murni tanpa pemanasan, yang dilakukan dengan membuat santan dari kelapa dan didiamkan di suhu 30oC selama 24 jam sampai minyak muncul. 3) Pemanfaatan kulit buah naga sebagai bahan tambahan pembuatan sabun padat. 4) pembuatan lilin aromaterapi dengan menambahkan pewarna dan aroma pada lilin cair. 5) Freeze dried buah buahan dan sayuran lokal untuk penyimpanan lebih lama dan menaikkan nilai ekonomis. 6) Pemanfaatan air kelapa menjadi Nata de Coco. 7) Pembuatan agar-agar materi koloid. 8) pembuatan telur asin dengan metode osmosis. Dan 9) Pembuatan Virgin Coconut Oil dengan metode fermentasi.
Analysis of Chemistry Education Students' Perceptions Regarding the Use of ChatGPT for Organic Chemistry Learning Fikriya, Sakti Hidayati; Zulqurnain, Muhammad; Suharman, Andi; Ad’hiya, Eka
LAVOISIER: Chemistry Education Journal Vol 4, No 2 (2025): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v4i2.17937

Abstract

Advances in artificial intelligence technologies, such as ChatGPT, provide new opportunities for learning Organic Chemistry, a subject noted for its abstract and complex concepts. The purpose of this study is to investigate students' impressions of using ChatGPT as a learning tool for mastering Organic Chemistry subjects. This descriptive quantitative study included 87 Chemistry Education Study Program students from Sriwijaya University's Faculty of Teacher Training and Education. A Likert-scale survey was used to obtain data on frequency of usage, perception of use, perception of utility, prompt effort, and ethical awareness when using ChatGPT. The results revealed that 98.9% had used ChatGPT to learn Organic Chemistry; 74% thought ChatGPT was successful in promoting understanding of the content; and 72% recognized the efficiency of learning time. Thematic study revealed that ChatGPT aided in the smooth exposition of difficult concepts such as stereochemistry and chemical processes. However, 59% believed that the explanations' accuracy required further scientific validation. Respondents acknowledged the possibility of conceptualization errors if ChatGPT was utilized without lecturer guidance or evaluation of scientific sources. These findings support ChatGPT's potential as an adaptable and relevant Organic Chemistry learning tool for achieving 21st-century demands such as critical thinking and problem solving. Additional study recommendations include integrating ChatGPT into organic chemistry learning models and media.
Analysis of Chemistry Education Students' Perceptions Regarding the Use of ChatGPT for Organic Chemistry Learning Fikriya, Sakti Hidayati; Zulqurnain, Muhammad; Suharman, Andi; Ad’hiya, Eka
LAVOISIER: Chemistry Education Journal Vol 4, No 2 (2025): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v4i2.17937

Abstract

Advances in artificial intelligence technologies, such as ChatGPT, provide new opportunities for learning Organic Chemistry, a subject noted for its abstract and complex concepts. The purpose of this study is to investigate students' impressions of using ChatGPT as a learning tool for mastering Organic Chemistry subjects. This descriptive quantitative study included 87 Chemistry Education Study Program students from Sriwijaya University's Faculty of Teacher Training and Education. A Likert-scale survey was used to obtain data on frequency of usage, perception of use, perception of utility, prompt effort, and ethical awareness when using ChatGPT. The results revealed that 98.9% had used ChatGPT to learn Organic Chemistry; 74% thought ChatGPT was successful in promoting understanding of the content; and 72% recognized the efficiency of learning time. Thematic study revealed that ChatGPT aided in the smooth exposition of difficult concepts such as stereochemistry and chemical processes. However, 59% believed that the explanations' accuracy required further scientific validation. Respondents acknowledged the possibility of conceptualization errors if ChatGPT was utilized without lecturer guidance or evaluation of scientific sources. These findings support ChatGPT's potential as an adaptable and relevant Organic Chemistry learning tool for achieving 21st-century demands such as critical thinking and problem solving. Additional study recommendations include integrating ChatGPT into organic chemistry learning models and media.
Co-Authors A. Rachman Ibrahim, A. Rachman Ad’hiya, Eka Ad’hiya, Eka D Desi, D Diah Kartika Sari Effendi Nawawi, Effendi Eka Ad’hiya Fakhili Gulo Fikriya, Sakti Hidayati Hadeli L, M Hadeli, Muhammad Haryani, Maefa Eka Karolin, Cindi KARTIKA SARI, DIAH L., Muhammad Hadeli Mulyono, Budi Rachman Ibrahim, Abdul Rananda Vinsiah, Rananda Sanjaya sanjaya Simbolon, Anita H. Sofia Sofia Sofia, Sofia Sukaryawan, Made syarani, meylina Tatang Suhery, Tatang W, K Anom Zulqurnain, Muhammad