Article Per Year (5 Year)
p-Index From 2021 - 2026
4.176
P-Index
This Author published in this journals
All Journal Jurnal Entropi Sainstek Jurnal Teknik QUANTUM: Jurnal Inovasi Pendidikan Sains Seminar Nasional Pendidikan IPA Jurnal Penelitian Pendidikan IPA (JPPIPA) Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jambura Journal of Educational Chemistry Jambura Journal of Chemistry Hydrogen: Jurnal Kependidikan Kimia Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Prosiding Amal Insani Foundation Proceeding Seminar Nasional IPA Jurnal Akademika Kimia Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa Damhil: Jurnal Pengabdian kepada Masyarakat Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Nita Suleman
Universitas Negeri Gorontalo
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Other

Published : 39 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 39 Documents
Search

 1   2   3   4 
Pengaruh Pembelajaran Model Online Driver Terhadap Hasil Belajar Siswa pada Materi Laju Reaksi Kupang, Sri Revayana; Bialangi, Nurhayati; Suleman, Nita; Kilo, Akram La; Kilo, Jafar La; Kilo, Ahmad Kadir
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.v4i2.14859

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pembelajaran model online driver terhadap hasil belajar siswa kelas XI SMA Negeri 1 Bintauna. Penelitian ini merupakan penelitian kuantitatif menggunakan metode pra-eksperimen dengan design one group pretest-posttest. Sampel yang digunakan dalam penelitian ini adalah seluruh siswa kelas XI MIA 2 di SMA Negeri 1 Bintauna pada semester ganjil tahun ajaran 2021/2022 yang berjumlah 34 siswa. Penelitian ini, diberikan perlakuan pembelajaran kimia melalui pembelajar model online driver , kemudian diberikan pretest dan posttest pada kelas tersebut yang bertujuan untuk mengetahui sejauh mana pemahaman siswa dengan diberikan tes objektif sebanyak 15 butir soal pada materi laju reaksi. Berdasarkan hasil penelitian dapat disimpulkan bahwa pembelajaran model online driver pada siswa terdapat pengaruh terhadap hasil belajar siswa. Ini dibuktikan dengan nilai rata-rata pada pretest sebelum perlakuan 29,80 dan pada posttest setelah diberikan perlakuan mencapai 68,16. Dengan perhitungan uji N-Gain 0,542. Penelitian ini guru diharapkan dapat menerapkan pembelajaran model online driver dalam pembelajaran sebagai variasi metode mengajar.
Pengaruh Pemberian Tugas Berbasis Portofolio Terhadap Hasil Belajar Reaksi Oksidasi-Reduksi Siswa Kelas X di SMA Negeri 4 Gorontalo Abas, Novendra S; Paputungan, Mardjan; Suleman, Nita
Jambura Journal of Educational Chemistry Vol 1, No 1 (2019): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.894 KB) | DOI: 10.34312/jjec.v1i1.2068

Abstract

Penelitian ini merupakan penelitian kuantitatif yang bertujuan untuk mengetahui prosedur pemberian tugas berbasis portofolio dalam proses kegiatan belajar mengajar dan mengetahui pengaruh pemberian tugas berbasis portofolio terhadap hasil belajar siswa. Pemberian tugas berbasis portofolio diuji cobakan di kelas X IPA 1 SMA Negeri 4 Gorontalo dengan menggunakan Pretest-Posttest Control Group Design. Instrumen pengumpulan data terdiri dari lembar pretest dan posttest siswa. Teknik analisis data menggunakan uji-t, yakni tes statistik yang dipergunakan untuk menguji kebenaran atau kepalsuan hipotesis nihil. Hasil penelitian yang didapatkan, yaitu pemberian tugas berbasis portofolio dapat dilihat pada pemberian tugas mind mapping terjadi peningkatan pada pemberian tugas note exercise, dan mading, sehingga dapat disimpulkan bahwa nilai tugas-tugas portofolio siswa secara keseluruhan sudah cukup baik dan terdapat pengaruh pemberian tugas berbasis portofolio terhadap hasil belajar reaksi oksidasi-reduksi. Hal ini terlihat dari perbedaan yang cukup signifikan rata-rata hasil belajar siswa, yaitu 78,182 untuk kelas eksperimen dan 69,5 untuk kelas kontrol. Dibuktikan dengan hasil perhitungan uji-t yang telah dilakukan yaitu thitung 7,30 ttabel 1,68.
Deskripsi Kemampuan Pemecahan Masalah Siswa pada Materi Hidrolisis Garam Bialangi, Nurhayati; Paputungan, Fadilah Alawiya; Paputungan, Mardjan; Suleman, Nita; Arviani, Arviani; Kurniawati, Erga
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.v5i1.14863

Abstract

Penelitian ini merupakan penelitian deskriptif dengan pendekatan kualitatif. Instrument yang digunakan adalah tes esai pada materi hidrolisis garam. Sampel dalam penelitian ini adalah 40 orang siswa SMA Negeri 4 Gorontalo. Hasil penelitian menunjukkan bahwa hasil persentase rata-rata dari keseluruhan butir soal yaitu sebesar 45% termasuk kedalam kategori cukup. Kemampuan pemecahan masalah siswa pada tahap memahami masalah sebesar 53.50% termasuk kedalam kategori cukup. Kemampuan pemecahan siswa pada tahap merencanakan pemecahan masalah sebesar 50.75% termasuk kedalam kategori cukup. Kemampuan pemecahan masalah siswa pada tahap melaksanakan rencana penyelesaian sebesar 46.67% termasuk kedalam kategori cukup. Kemampuan pemecahan masalah siswa pada tahap memeriksa kembali jawaban yang diperoleh sebesar 24% termasuk kedalam kategori kurang.
Identifikasi Pemahaman Konsep Siswa pada Materi Termokimia Menggunakan Tes Diagnostik Three-Tier Multiple Choice Suleman, Nita; Lukum, Astin; Rauf, Nuramna; Paputungan, Mardjan; Alio, La; Sukamto, Kostiawan
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.v5i2.13255

Abstract

This research is descriptive qualitative research, which aims to determine students' concept understanding of thermochemistry in class XI SMA Negeri 1 Gorontalo. The instrument used was a Three-tier multiple-choice Diagnosis Test. The research subject used was class XI IPA SMA Negeri 1 Gorontalo, with a sample size of 42 students. The research data was obtained from students' answers to the Three-tier multiple-choice questions. The data was processed based on the pattern of student answers, which were then grouped into the categories of conceptual understanding, misconceptions, and not conceptual understanding. The results showed that students who understood the concept were 46.19%, misconceptions were 43.97%, and did not understand the concept by 9.84%.
Pemanfaatan Limbah Tandan Kosong Kelapa Sawit (Elaies Guineensis Jacq.) Sebagai Briket Bioarang Meyrin Hamzah; Erni Mohamad; Nita Suleman; Ishak Isa; Wiwin Rewini Kunusa; Arviani Arviani
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 1 (2025): Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i1.4723

Abstract

This study aims to determine the process of making oil palm empty fruit bunch briquettes through variations in tapioca flour as an alternative material, through the stages of research which include briquette making, namely drying, carbonization and printing. Briquette characterization includes proximate tests, namely water content, ash content, calorific value and densit. From the results of the proximate test at a ratio of 91:9, it shows that the quality of oil palm empty fruit bunch biochar briquettes with a moisture content of 7.07%, ash content of 8.769%, calorific value of 5850.2 cal/g and density of 0.55 g/cm3. The utilization of oil palm empty fruit bunches not only reduces waste, but also provides a solution for sustainable energy needs.
Implementation of Problem-Solving Learning Model to Improve Problem-Solving Skills of MAN 1 Kota Gorontalo Students Pikoli, Masrid; Amu, Siti Fadila Muhtar; Suleman, Nita
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 4 (2024): August 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i4.11646

Abstract

This study aims to improve problem-solving skills in thermochemistry material for 11th Grade MIPA (Mathematics and Natural Science) 2 class of MAN (Islamic Senior High School) 1 Kota Gorontalo students. This study is a class action research conducted in two cycles. The subjects of this study were all students of 11th Grade MIPA 2 class of MAN 1 Kota Gorontalo, which amounted to 40 students.  Data collection methode include tests and observations, while data analysis involves qualitative descriptive study. Data was obtained from the test results of students' problem-solving skills and the result of observing teacher and student activities through observation sheets. The results show that problem-solving learning model can improve students' problem solving skills, where the ability to understand the problem from 72% in Cycle I increased to 90.8% in Cycle II. The ability to plan problem-solving increased from 73.5% in Cycle I to 87.7% in Cycle II. The ability to execute the plan increased from 69.8% to 86.6% in cycle II, while the ability to rechek increased from 57.5% in Cycle I to 77.7% in Cycle II. Then, teacher activity increased from 65.71% in Cycle I to 85.71% in Cycle II. Moreover, student activity increased from 61.62% in Cycle I to 80.12% in Cycle II.
TRANSFORMASI PEMAHAMAN RELASIONAL MAHASISWA DALAM IMPLEMENTASI MODEL 5C: KAJIAN PENILAIAN FORMATIF SETIAP TAHAPAN PEMBELAJARAN Nita Suleman; Rifadli Bahsuan
Seminar Nasional Pendidikan IPA Ke III Tahun 2025 Vol 3, No 1 (2025): Prosiding Seminar Pendidikan IPA
Publisher : Seminar Nasional Pendidikan IPA Ke III Tahun 2025

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

Abstract

Penelitian ini bertujuan untuk mengkaji transformasi pemahaman relasional mahasiswa melalui penerapan model pembelajaran 5C, yaitu Connecting (Menghubungkan), Confrontation (Konfrontasi), Collaboration (Kolaborasi), Clarification (Klarifikasi), dan Confirmation (Konfirmasi). Penelitian ini dilakukan dalam mata kuliah Kimia Fisika II dengan menggunakan pendekatan deskriptif yang didukung oleh asesmen formatif pada setiap tahapan proses pembelajaran. Instrumen penelitian meliputi rubrik asesmen formatif dan lembar refleksi terstruktur. Temuan penelitian menunjukkan adanya pergeseran signifikan dalam pemahaman relasional mahasiswa di setiap tahapan model 5C. Asesmen formatif memainkan peran penting dalam menangkap dinamika perubahan konseptual dan memungkinkan intervensi pedagogis yang lebih terarah. Hasil ini menggarisbawahi pentingnya desain pembelajaran berbasis asesmen formatif dalam memperkuat konstruksi pemahaman relasional mahasiswa dalam pembelajaran kimia.
Antioxidant Activity of Tilapia (Oreochromis niloticus) Bone Protein Hydrolysate Using the ABTS Method Nurain Dano; Deasy N. Botutihe; Nita Suleman; Nurhayati Bialangi; Najmah Najmah
Jurnal Akademika Kimia Vol. 15 No. 2 (2026)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2026.v15.i2.pp121-128

Abstract

Tilapia (Oreochromis niloticus) bones are a fishery by-product whose use remains limited, despite containing proteins that can be processed into bioactive peptides with antioxidant activity. This study aims to evaluate the characteristics of protein hydrolysate and antioxidant activity from raw and cooked tilapia bones using the ABTS method. Enzymatic hydrolysis was performed using papain at concentrations of 4%, 6%, and 8% (b/v) at pH 7 and 55°C for 4 hours. The parameters analyzed included qualitative amino acid tests, dissolved protein levels determined by the Kjeldahl method, degree of hydrolysis based on dissolved proteins in 10% TCA, and antioxidant activity expressed as IC₅₀ values. The results showed that all samples tested positively for amino acids, including aromatic amino acids. The lowest IC₅₀ value was observed in the treatment of a ripe sample with an enzyme concentration of 8% (6.89 mg/mL), indicating the highest antioxidant activity among the treatments. This is in line with an increase in the degree of hydrolysis to 84.53% under the same conditions, as well as an increase in dissolved protein levels to up to 32.78%. These findings indicate that tilapia bone protein hydrolysate has the potential to serve as a natural source of antioxidants, particularly under optimal hydrolysis conditions.
Analysis of Thermochemistry Concept Understanding of Grade XI Students Based on the Consistency of Students’ Answers Using the Parallel Three-Tier Diagnostic Test Friskawati Arkani; Mangara Sihaloho; Nita Suleman; Lukman Abdul Rauf Laliyo; Netty Ino Ischak
Jambura Journal of Educational Chemistry Vol 8, No 2 (2026): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v8i2.39096

Abstract

Thermochemistry is frequently regarded as difficult because students must connect observable heat phenomena, particle-level energy changes, and symbolic enthalpy calculations. This study aimed to analyze students’ thermochemistry concept understanding based on the consistency of their answers using a parallel three-tier diagnostic test. The research used a descriptive qualitative approach at SMA Negeri 1 Kabila during the odd semester of the 2025/2026 academic year. The subjects were 135 grade XI students. The instrument consisted of 20 parallel three-tier multiple-choice items arranged in 10 pairs that measured the same concepts through answer choices, reasoning choices, and confidence levels. Instrument quality was examined through expert validation and empirical testing using the Rasch model. The data were analyzed by calculating answer consistency and classifying students into knowing concept, misconception 1, misconception 2, misconception 3, and not understanding concept categories. The results showed that the average consistency of students’ concept understanding was only 29.48%, whereas inconsistency reached 70.52%. The average knowing concept category was 51.19%, followed by misconception 1 at 11.19%, misconception 2 at 16.84%, misconception 3 at 10.04%, and not understanding concept at 10.85%. These findings indicate that students’ thermochemistry understanding was not yet stable, especially for Hess law, calorimetry, and bond energy concepts.
Co-Authors Abas Abas, Novendra S Abdul Gias Junus Ahmad Kadir Kilo Akram La Kilo Amu, Siti Fadila Muhtar Andimala, Febriyanti Arviani Arviani Astin Lukum Basalama, Muhamad Tri Rezki Deasy N. Botutihe Elvira T Haruna Erga Kurniawati Erni Mohamad Febriyanti Andimala Friskawati Arkani Hendri Iyabu Ishak Isa Jafar La Kilo Jafar La Kilo Jhodi Pratama Djalil Julhim S Tangio Jumi, Wa Karmila Nusi Kostiawan Sukamto, Kostiawan Kupang, Sri Revayana La Alio La Ode Aman Liputo, Aprila Perdana Eka Citra Lukman A. R. Laliyo Mangara Sihaloho Mardjan Paputungan Maryam Padi Masrid Pikoli Merlin Darise Meyrin Hamzah Monoarfa, Wanda Musrin Salila Mustofa Mustofa Naiyo, Marlina H. Najmah Najmah Najmah, Najmah Netty I Ischak Netty Ino Ischak Nilda Apriyati Tengo Nurain Dano Nurhayati Bialangi Nurhayati Lambayu Otoluwa, Sri Yulanda Padi, Maryam Paputungan, Fadilah Alawiya Rauf, Nuramna Rifadli Bahsuan Romario Abdullah Salman, Lismawati Suleman Duengo Wa Heni Wiwin Rewini Kunusa Yulia Rahman Yunus Yulianti Yulianti Yuszda K Salimi