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All Journal Jurnal Pendidikan Kimia Indonesia Jurnal Entropi Alchemy : Journal of Chemistry The Journal of Pure and Applied Chemistry Research Jurnal Zarah Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jambura FIsh Processing Journal Jambura Journal of Educational Chemistry Jambura Journal of Chemistry Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Experiment: Journal of Science Education Indonesian Journal of Chemistry and Environment Nautical: Jurnal Ilmiah Multidisiplin Indonesia Indonesian Biodiversity Journal Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Indonesian Biodiversity Journal Pentagon: Jurnal Matematika dan Ilmu Pengetahuan Alam Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa Jurnal Pendidikan Kimia, Fisika dan Biologi Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Hendri Iyabu
Universitas Negeri Gorontalo
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences Veterinary Other

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Pengembangan Media Pembelajaran Tera-Tera untuk ‎Meningkatkan Minat Belajar Siswa pada Materi Larutan ‎Penyangga Pakuna, Nurpepi; Iyabu, Hendri; Duengo, Suleman
Jambura Journal of Educational Chemistry Vol 3, No 1 (2021): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jjec.v3i1.10140

Abstract

Penelitian ini bertujuan menguji validitas media pembelajaran tera-tera untuk meningkatkan minat belajar siswa pada materi larutan penyangga. Penelitian ini merupakan jenis penelitian pengembangan atau Research and Development (R&D) dengan model pengembangan ADDIE. Adapun tahap tersebut yaitu: Analysis, Design, Development, Implementation dan Evaluasi. Namun, dalam penelitian ini hanya sampai tahap development. Teknik pengumpulan data pada penelitian ini menggunakan lembar validasi penilaian kelayakan media pembelajaran tera-tera. Kelayakan media tera-tera dinilai oleh 4 orang validator ahli yaitu 3 orang dosen kimia UNG dan 1 orang guru SMA. Hasil validasi pengembangan media pembelajaran tera-tera diperoleh persentase rata-rata 90,00% dengan kriteria sangat valid untuk digunakan sebagai media pembelajaran. Berdasarkan hasil penelitian yang didapatkan bahwa media pembelajaran tera-tera yang dikembangkan sangat layak digunakan dalam proses pembelajaran materi larutan penyangga.
Studi Perbandingan Kemampuan Pemecahan Masalah Siswa Menggunakan Model Pembelajaran Problem Based Learning dan Problem Solving Sabora, Ririn S.; Lukum, Astin; Paputungan, Mardjan; Iyabu, Hendri; Aman, La Ode; Alio, La
Jambura Journal of Educational Chemistry Vol 4, No 2 (2022): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jjec.v4i2.15781

Abstract

Tujuan penelitian adalah untuk Adapun tujuan dari penelitian ini adalah untuk: Mengetahui perbedaan signifikan antara kemampuan pemecahan masalah siswa yang menerapkan model pembelajaran Problem Based Learning dan Problem Solving di SMAT Wira Bhakti. Desain penelitian yang digunakan adalah Quasi Eksperimental dengan rancangan pretest-posttest control group design. Sampel pada penelitian ini berjumlah 40 siswa yaitu sebanyak 20 siswa pada kelas eksperimen I dan 20 siswa pada kelas eksperimen II. Berdasarkan hasil yang diperoleh dari uji t, nilai thitung sebesar 4,9774 dan nilai ttabel pada taraf α = 0,05; dk = 38 diperoleh sebesar 1,68595. Dengan demikian thitung dilihat lebih besar dari ttabel (thitung = 4,9774 ˃ ttabel =1,68595) sehingga H0 ditolak dengan arti lain bahwa H1 diterima. artinya terdapat adanya perbedaan signifikan antara kemampuan pemecahan masalah siswa pada pokok bahasan hukum-hukum dasar kimia antara kelas yang menerapkan model pembelajaran problem based learning dan kelas yang menerapkan model pembelajaran problem solving di SMA Terpadu Wira Bhakti.
Identifikasi Pemahaman Konsep Siswa pada Materi Titrasi Asam Basa Rumape, Opir; Adjami, Eka Nur Fadliya; Pikoli, Masrid; Sihaloho, Mangara; Iyabu, Hendri; Abas, Ramona Nintias R.
Jambura Journal of Educational Chemistry Vol 6, No 1 (2024): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v6i1.23392

Abstract

This research was conducted to identify the level of students' conceptual understanding in acid-base titration material for class XI IPA MAN I Gorontalo City. This research is descriptive research, the instrument used in this research is a two-tier multiple choice diagnostic test consisting of 10 item questions. This instrument has been tested for validity with validation results obtained at 100%. The research respondents were 118 students of class XI IPA at MAN I Gorontalo City. Data collection was obtained by means of observation, giving tests and documentation. The results showed that students' understanding of the concept of acid-base titration material in the understanding category was 80%, in the category of misconceptions was 13%, in the category of guessing was 2%, and in the category of not understanding the concept was 5%. So it can be concluded that students' understanding of acid-base titration material tends to understand the concept.
Identifikasi Pemahaman Konsep Tingkat Representasi Makroskopik, Mikroskopik, dan Simbolik pada Materi Ikatan Kimia Musa, Weny J.A; Mantuli, Mohamad Alan; Tangio, Julhim S.; Iyabu, Hendri; Kilo, Jafar La; Kilo, Ahmad Kadir
Jambura Journal of Educational Chemistry Vol 5, No 1 (2023): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jjec.v5i1.15201

Abstract

Penelitian ini bertujuan untuk mengetahui pemahaman konsep siswa tingkat representasi makroskopik, mikroskopik, dan simbolik pada materi ikatan kimia di SMAT Wira Bhakti Gorontalo. Penelitian ini merupakan penelitian deskriptif kualitatif yang diujikan kepada 57 siswa kelas X SMAT Wira Bhakti Gorontalo. Pengumpulan data menggunakan tes diagnostik tiga tingkat. Level pemahaman siswa dibagi menjadi tiga kategori yaitu paham konsep, tidak paham konsep, dan miskonsepsi, yang terdiri dari tiga tingkat representasi yaitu makroskopik, mikroskopik, dan simbolik. Hasil penelitian menunjukan bahwa pada tingkat representasi makroskopik siswa paham konsep sebesar 9,20%, tidak paham konsep sebesar 23,60%, dan miskonsepsi sebesar 67,20%. Pada tingkat representasi mikroskopik siswa paham konsep sebsar 15,75%, siswa tidak paham konsep sebsar 17%, dan miskonsepsi sebesar 67,25%. Pada tingkat representasi simbolik siswa paham konsep sebsar 7,17%, tidiak paham konsep sebesar 23,17%, dan miskonsepsi sebesar 69,67%. Sehingga dapat ditemukan bahwa ketiga tingkat representasi berada dikategori miskonsepsi dengan kriteria tinggi, yaitu pada makroskopik sebesar 67,20%, mikroskopik sebesar 67,25%, dan simbolik sebesar 69,67%. Sehingga rata-rata totalnya didapatkan sebesar 68,04%. Berdasarkan presentase ditemukan bahwa pengetahuan siswa kelas X SMAT Wira Bhakti Gorontalo termasuk pada kategori miskonsepsi dengan kriteria tinggi.
Analisis Kemampuan Berpikir Kreatif Siswa pada Materi Sel Volta dan Sel Elektrolisis dengan Menggunakan Tes Open-Ended Problem Mohamad, Erni; Iyabu, Hendri; Wiwiyani, Wiwiyani; Sihaloho, Mangara; Bialangi, Nurhayati; Kilo, Akram La
Jambura Journal of Educational Chemistry Vol 5, No 2 (2023): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jjec.v5i2.14492

Abstract

This study aims to determine students' creative thinking abilities in the topics of voltaic cells and electrolysis by using open-ended problem tests at SMA Negeri 4 Gorontalo, to understand teachers' responses to the administered open-ended problem tests, and to gauge students' responses to the administered open-ended problem tests. The research approach employed is descriptive qualitative. The subjects of this study were 62 twelfth-grade science students and 2 chemistry teachers at SMA Negeri 4 Gorontalo. The data utilized in the study consist of the results of students' creative thinking ability tests using open-ended problem tests, as well as the responses gathered from questionnaires regarding the test item model. The research findings reveal that students' creative thinking abilities in terms of fluency aspect are at 47.8% categorized as moderately creative, the flexibility aspect at 45.4% categorized as moderately creative, and the originality aspect at 31.9% categorized as less creative. The results from the teachers' questionnaire responses regarding the open-ended problem test model show a positive response rate of 80%, while the results from the students' questionnaire responses indicate a positive response rate of 61%.
Pengaruh Strategi Pembelajaran Pogil Terhadap Keterampilan Proses Sains Siswa Pada Materi Laju Reaksi Di SMA Negeri 5 Gorontalo Yahyu Tanaiyo; Lukman Abdul Rauf Laliyo; La Alio; Masrid Pikoli; Akram La Kilo; Hendri Iyabu
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 4 (2024): Desember : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v2i4.4245

Abstract

This quantitative study aims to discover the effect of the Process Oriented Guided Inquiry Learning (POGIL) learning strategy on students' science process skills concerning reaction rate material. The study employs a quasi-experimental design with a pre-posttest control group. The instrument used is a multiple-choice test to measure students' science process skills. The sample consists of all students in the XI IPA class at SMA Negeri 5 Gorontalo, totaling 45 students: 22 in the experimental group and 23 in the control group. Data analysis utilizes the Rasch Model and SPSS 16.0 for hypothesis testing using the Wilcoxon test. The analysis results show that the person reliability value is 0.00, indicating weak consistency in answering the questions, while the item reliability value is 0.71, suggesting that the quality of the test items is quite good. The mean difference in item scores from pre-test to post-test is greater in the experimental group (3.83 logit) compared to the control group (1.59 logit). Wilcoxon test results show significant values < 0.05, with the experimental group having a significant value of 0.00 and the control group at 0.00.
Mengevaluasi Level Pemahaman Konsep Hidrolisis Garam Peserta Didik Menggunakan Tes Diagnostik Pilihan Ganda Empat Tingkat Suteno, Ivani Kusnadi; Laliyo*, Lukman Abdul Rauf; Iyabu, Hendri; Abdullah, Romario
Jurnal Pendidikan Sains Indonesia Vol 9, No 3 (2021): JULY 2021
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v9i3.20543

Abstract

The ability of students to understand and use concepts is the main key in scientifically explaining various chemical phenomena in nature. This ability develops relatively, often with the development of the learner level. This study aims to understand the level of understanding of the concept of salt hydrolysis of class XI high school students and chemistry students in the I, II, III and IV years and non-chemistry students with a total sample of 875 respondents. The instrument used in this study was a four-level multiple choice test. This diagnostic test combines the measurement of knowledge and reasoning with the level of self-confidence, as a reflection of the level of mastery of concepts. The data analysis technique used is quantitative, using SPSS 25 software, namely the non-parametric test (Kruskal Wallis test), comparing the significance value (Asmp. Sig) with a probability of 0.005. The results showed that the significance value of 0.00 was less than 0.05; That is, there is a significant difference in the level of understanding of the salt hydrolysis concept of students. The level of understanding of the concept of high school students is better than the first, second, third, and fourth year students in chemistry and non-chemistry students. These findings reinforce the story that although students have experienced learning experiences at a higher level, it does not guarantee the development of mastery of understanding the concept of hydrolysis
Analisis merkuri, timbal, kromium dan kadmium pada air minum isi ulang Desa Dulupi menggunakan metode SSA Labuga, Ditawati; Mohamad, Erni; Iyabu, Hendri
Nautical : Jurnal Ilmiah Multidisiplin Indonesia Vol. 4 No. 3 (2025): Nautical: Jurnal Ilmiah Multidisiplin Indonesia (Inpress)
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/0qfz5p67

Abstract

Penelitian ini bertujuan untuk mengetahui adanya logam serta jumlah kadar logam berat merkuri, timbal, kromium, dan kadmium pada air minum isi ulang di Desa Dulupi. Air minum merupakan kebutuhan pokok bagi masyarakat, namun kualitasnya sering kali terancam oleh pencemaran logam berat yang dapat membahayakan kesehatan. Penelitian ini menggunakan metode sampel gabungan tempat (integrated sample) dengan mengambil sampel air baku dan hasil olahan dari depot air minum yang terletak di beberapa titik di Dusun 1 Jambura dan Dusun 3 Sambati. Metode yang digunakan dalam penelitian ini meliputi metode kualitatif dan kuantitatif. Untuk analisis kualitatif, digunakan 3 reagen, yaitu KI, NaOH, dan H2O2, sedangkan untuk analisis kuantitatif, digunakan instrumen Spektrofotometer Serapan Atom (SSA). Hasil penelitian menunjukkan bahwa pada uji kualitatif, terdapat sampel yang terbukti mengandung logam timbal dan kromium, khususnya pada sampel A2.2 yang diambil dari air olahan depot di Dusun 1 Jambura. Selain itu, pada uji kuantitatif, kadar logam timbal juga terdeteksi pada sampel tersebut dengan kadar 0.0012  mg/L. Penelitian ini menekankan pentingnya pengawasan kualitas air minum isi ulang untuk memastikan bahwa air yang dikonsumsi oleh masyarakat aman dan memenuhi standar kesehatan yang ditetapkan.
HEAVY METAL CONTAMINATION IN WATER SOURCES IN POHUWATO REGENCY: IMPLICATIONS FOR BIODIVERSITY AND PUBLIC HEALTH IN GOLD MINING AREAS Iyabu, Hendri; Baderan, Dewi Wahyuni K; Hamidun, Marini Susanti; Rahim, Sukirman; Rauf, Asda
Indonesian Biodiversity Journal Vol. 6 No. 3 (2025): December 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/j135j237

Abstract

Artisanal and small-scale gold mining (ASGM) can increase the levels of heavy metals in surface water and groundwater sources. This study was conducted to evaluate water quality in Pohuwato Regency, Gorontalo, Indonesia. Sampling was performed at three sites: a reservoir, an irrigation channel, and a well. The concentrations of lead (Pb), cadmium (Cd), iron (Fe), manganese (Mn), and mercury (Hg) were analyzed using Atomic Absorption Spectrophotometry (AAS). The results indicated that Hg concentrations ranged from 0.00883 to 0.01493 mg/L (≈8.8–14.9× above the WHO guideline value of 0.001 mg/L), Mn concentrations ranged from 0.1309 to 0.543 mg/L (≈1.3–5.4× above the WHO guideline value of 0.1 mg/L), while Pb concentrations ranged from 0.0019 to 0.0048 mg/L, Cd concentrations ranged from 0.0002 to 0.0006 mg/L, and Fe concentrations ranged from 0.0728 to 0.101 mg/L, all of which were below the recommended threshold values for drinking water. The findings emphasize the importance of mitigation strategies based on mining governance, strengthening water safety plans, as well as interventions for household water treatment (adsorption/filtration) and risk communication.
HEAVY METAL CONTAMINATION IN WATER SOURCES IN POHUWATO REGENCY: IMPLICATIONS FOR BIODIVERSITY AND PUBLIC HEALTH IN GOLD MINING AREAS Iyabu, Hendri; Baderan, Dewi Wahyuni K; Hamidun, Marini Susanti; Rahim, Sukirman; Rauf, Asda
Indonesian Biodiversity Journal Vol. 6 No. 3 (2025): December 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/j135j237

Abstract

Artisanal and small-scale gold mining (ASGM) can increase the levels of heavy metals in surface water and groundwater sources. This study was conducted to evaluate water quality in Pohuwato Regency, Gorontalo, Indonesia. Sampling was performed at three sites: a reservoir, an irrigation channel, and a well. The concentrations of lead (Pb), cadmium (Cd), iron (Fe), manganese (Mn), and mercury (Hg) were analyzed using Atomic Absorption Spectrophotometry (AAS). The results indicated that Hg concentrations ranged from 0.00883 to 0.01493 mg/L (≈8.8–14.9× above the WHO guideline value of 0.001 mg/L), Mn concentrations ranged from 0.1309 to 0.543 mg/L (≈1.3–5.4× above the WHO guideline value of 0.1 mg/L), while Pb concentrations ranged from 0.0019 to 0.0048 mg/L, Cd concentrations ranged from 0.0002 to 0.0006 mg/L, and Fe concentrations ranged from 0.0728 to 0.101 mg/L, all of which were below the recommended threshold values for drinking water. The findings emphasize the importance of mitigation strategies based on mining governance, strengthening water safety plans, as well as interventions for household water treatment (adsorption/filtration) and risk communication.
Co-Authors Abas, Ramona Nintias R. Abdullah, R. Abdullah, Romario Adjami, Eka Nur Fadliya Ahmad Kadir Kilo Akram La Kilo Andimala, Febriyanti Anita Muhammad Arviani Arviani Asda Rauf Astin Lukum Astria Endesei Balong, Sulsitiawati Daing, Hardianti Deasy N. Botutihe Dewi Wahyuni K. Baderan Djafar, Yuliyanti Wahab Djalil, Jhodi Pratama Doly Prima Silaban Erga Kurniawati Erni Mohamad Febriyanti Andimala Haris Munandar Harni Anhar S. Ambololo Ishak Isa Ishka Isa Ismail, Siti Hardina Iswan Dunggio Ivani Kusnadi Suteno Jafar La Kilo Jafar La Kilo Julhim S Tangio Julhim S. Tangio La Alio La Alio La Ode Aman Labuga, Ditawati Lasim, Windi Sulistiyani Luawo, Aprilia Lukman A. R. Laliyo Mangara Sihaloho Mantuli, Mohamad Alan Mardjan Paputungan Marini Susanti Hamidun Maryam Padi Masrid Pikoli musa, weni ja Najmah Najmah Najmah, Najmah Nani, Srimukmin Nento, Tia Dwi Lestari Netty Ino Ischak Ningkaula, T. A. Nita Suleman Nur&#039;afni Suaib Nurhayati Bialangi Nurpatima, Nurpatima Opir Rumape Padi, Maryam Pakuna, Nurpepi Riryn Tahir Riskawati Pomolango Romario Abdullah Sabora, Ririn S. Samosir, Andeston Sumandoli Sarmini A Iladat Sindy atteri warda Suchi Wulandari Dai Sukirman Rahim Suleman Duengo Supriadin, Yogi Suteno, Ivani Kusnadi Thayban Thayban Tiro, Lusiani La Verayana, Verayana Weny J. A. Musa Weny J.A. Musa Wisna Taniyo Wiwin Rewini Kunusa Wiwiyani, Wiwiyani Yahyu Tanaiyo Yuszda K Salimi Yuszda K. Salimi