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All Journal Nian Tana Sikka: Jurnal Ilmiah Mahasiswa 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
Julhim S. Tangio
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Education Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Social Sciences

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The Effect of Ethnoscience Approach Through Problem Based Learning Model on Chemical Literacy Ability of Class XI Students on Reaction Rate Material at SMA Negeri 7 Gorontalo Riryn Tahir; Hendri Iyabu; Julhim S. Tangio; Mangara Sihaloho; Wiwin Rewini Kunusa; Thayban Thayban
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 1 (2025): Maret : Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/pentagon.v3i1.388

Abstract

The research aims to determine the effect of the ethnoscience approach through the problem-based learning model on the chemical literacy skills of Grade XI students in the reaction rate material at SMA Negeri 7 Gorontalo. The research employs a quasi experimental method with a nonequivalent control group design. The sample consisted of Grade XI IPA ( Natural Science) students from SMA Negeri 7 Gorontalo. The instrument used in this research was an essay test. Data processing and analysis were conducted using Microsoft Office Excel and SPSS version 16. The hypothesis test results on students’ post-test data using the Mann-Whitney test at a significance level of α = 0.05 showed that the Asymp. Sig. (2-tailed) value was less than 0.05 (0,002 < 0,05). Therefore, H1 was confirmed, and H0 was rejected. The N- Gain test results also indicated that the ethnoscience approach through the problem-based learning model was moderately effective in improving students’ chemical literacy skills in reaction rate material, with the experimental class achieving an N-Gain score percentage of 57.13% (moderately effective category), while the control class achieved a percentage of 31.42% (ineffective category). In conclusion, the ethnoscience approach through the problem-based learning model significantly affects students’ chemical literacy skills in reaction rate material.
Analisis Kemampuan Berargumentasi Ilmiah Siswa Kelas XI di SMA Negeri 1 Telaga pada Materi Larutan Elektrolit dan Nonelektrolit Regina Olii; Lukman Abdul Rauf Laliyo; Ahmad Kadir Kilo; Akram La Kilo; Julhim S. Tangio; Erga Kurniawati
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 3 No. 1 (2025): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v3i1.361

Abstract

This study aims to assess the scientific argumentation skills of eleventh grade students at SMA Negeri 1 Telaga on the topic of electrolyte and nonelectrolyte solutions. The study employs a descriptive qualitative approach. The data collection method utilized a multiple-choice test with five indicators of scientific argumentatio, comprising 25 questions. The sample comprises 132 students from the eleventh grade at SMA Negeri 1 Telaga. The results reveal that students’ scientific argumentation skills on the topic of electrolyte and nonelectrolyte solutions are categorized as fair, with a claim level of 48,4%, data level of 53%, warrant level of 50,6%, backing level of 44,4%, and rebuttal level of 44,3%. It can be concluded that while students’ argumentation skills are aduwuate, many students still struggle to present a complete argumentation using all indicators. The active participation of both students and teachers during lessons is crucial to improving students’ scientific argumentation abilities, particularly in overcoming misconceptions related to electrolyte and nonelectrolyte solutions.
Analisis Penguasaan Konsep Materi Senyawa Hidrokarbon Siswa Kelas XI SMA Moh Musli Malajai; Masrid Pikoli; Mangara Sihaloho; Julhim S. Tangio; Ahmad Kadir Kilo; Haris Munandar
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 3 No. 1 (2025): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v3i1.370

Abstract

This study aims to analyze students' conceptual mastery of hydrocarbon compounds. The method used in the study is descriptive qualitative. The study was conducted in the even semester of the 2023/2024 academic year. The subjects of this study were 59 students of class XI MIPA SMA Negeri 1 Limboto. The data collection technique used a concept mastery test instrument in the form of multiple choices that had been tested for validity and reliability. The results showed that conceptual understanding. The percentage of students in Determining the molecular formula and structure of hydrocarbon compounds obtained a percentage of 78.53% with a good category, on the indicator Distinguishing types of reactions and physical regularity of 67.80% with a sufficient category, on the indicator determining the isomers of hydrocarbon compounds of 40.68% with a less category, on the indicator analyzing the type of C atom based on the number of C atoms bound to the carbon atom chain of 27.12% with a less category, on the indicator predicting the type of isomers of hydrocarbon compounds, namely 38.42% with a less category and on the indicator correcting the structural formula of hydrocarbon compounds, namely 63.84% with a sufficient category. Then the total average percentage value is 52.73% with the Less category.
Pengaruh Model Pembelajaran CERDAS terhadap Hasil Belajar Siswa pada Materi Nanoteknologi di Kelas X SMA Negeri 7 Prasetya Gorontalo Zulfa K Muslimin; Mangara Sihaloho; Mardjan Paputungan; Julhim S. Tangio; Erni Mohamad; Thayban Thayban
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 3 No. 1 (2025): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v3i1.380

Abstract

This research aimed to examine the effect of the CERDAS learning model on student learning outcomes. The research employed a quasi-experimental method with a non-equivalent prest-posttest control group design. The sample consisted of students from class X Merdeka 3, serving as the experimental group, and class X Merdeka 1 as the control group. Both from SMA Negeri 7 Prasetya Gorontalo. These classes were selected using purposive sampling. The research instrument was an objective test. The results revealed a significant difference in the average scores between the experimental and control classes. Specifically, the average student learning outcome in the experimental group was 79,77, while in the control group, it was 67,27. Hypothesis testing using the t-tes yielded tcount value > ttable, indicated the tcount (2,99) was greater than the ttable value (2,01), which led to the rejection of H0 and confirmation of H1, Confirming that the CERDAS learning model had a significant effect on student learning outcomes. Additionally, the N-Gain test showed a moderate effect (0,68), indicating that the CERDAS learning model is fairly effective in improving student learning outcomes.
Analisis Kemampuan Pemahaman Konsep Siswa pada Materi Hidrokarbon Menggunakan Three-Tier Multiple Choice Diagnostic Instrument : Literature Review Marsya Divya Olii; Nurhayati Bialangi; Julhim S. Tangio; Mangara Sihaloho; Erga Kurniawati
Jurnal Pendidikan Kimia, Fisika dan Biologi Vol. 1 No. 3 (2025): Mei : Jurnal Pendidikan Kimia, Fisika dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupenkifb.v1i3.321

Abstract

This study aims to analyze students’ conceptual understanding of hydrocarbons through a literature review utilizing the Three-Tier Multiple Choice Diagnostic Instrument. Hydrocarbons are a fundamental topic in chemistry education that often leads to student misconceptions. The three-tier diagnostic instrument is designed not only to assess students’ cognitive knowledge through correct or incorrect answers but also to explore the reasoning behind their choices, enabling more accurate identification of misconceptions and conceptual understanding. The methodology employed is a literature review examining various scientific sources on the application of this diagnostic tool in teaching hydrocarbon concepts. The findings indicate that the Three-Tier Multiple Choice Diagnostic Instrument is effective in systematically detecting and classifying students’ difficulties and misconceptions. Furthermore, the use of this instrument contributes significantly to developing targeted and data-driven instructional strategies to enhance students’ conceptual mastery in chemistry. The implications of this study highlight the necessity of integrating three-tier diagnostic instruments in the assessment process to support optimal learning outcomes in hydrocarbon material.
Analisis Penguasaan Konsep Tentang Struktur Lewis Siswa SMAN 1 Kabila Moh. Fajri Langgene; Opir Rumape; Masrid Pikoli; Wiwin Rewini Kunusa; Julhim S. Tangio; Mangara Sihaloho
Nian Tana Sikka : Jurnal ilmiah Mahasiswa Vol. 3 No. 3 (2025): Nian Tana Sikka : Jurnal ilmiah Mahasiswa
Publisher : Fakultas Ekonomi & Bisnis, Universitas Nusa Nipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59603/niantanasikka.v3i3.859

Abstract

This research aims to asses high scool students’ Masteri of lewis structures for chemical compounds at SMA Negeri 1 Kabila Employs a descriptive qualitative approach with subjects including Class X-V (18 Students), Class X-VII (19 Students), and Class XII-V (20 students), The research instrument used is a pre-test questionnaire comprising 15 multiple-choice questions on lewis structures. Data were analyzed based on students’ performance in answering question related to chemical bonding. Results indicate the mastery abilyti of class X-V students based on the overall test results obtained at 75.67% class x-VII students at 85.26%, and Class X-VIII students at 76.30% (Very, puor, category) therefore, it is necessary to enhace students’ mastery ability.
Pengaruh Model Pembelajaran Contextual Teaching and Lerning (CTL) Materi Laju reaksi: Literature Review terhadap Kemampuan Berfikir Kritis dan Karakter Siswa Muh. Arwin; Masrid Pikoli; Mangara Sihaloho; Wiwin Rewini Kunusa; Julhim S. tangio; Haris Munandar
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 1 (2025): Maret : Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/pentagon.v3i1.442

Abstract

This study focuses on the effect of applying the Contextual Teaching and Learning (CTL) model in the topic of reaction rate on the ability to think critically and the formation of character values of students in geographically remote areas (remote areas). This approach is designed to strengthen learners' understanding of scientific concepts in a relevant and contextual manner, by connecting them to the dynamics of real life - both in the personal, social and cultural domains. Thus, learners have the opportunity to build conceptual insights and adaptive skills independently. In addition, this real situation-based method contributes to fostering character values such as responsibility, discipline, innovation, curiosity, as well as social interaction skills and effective communication during the learning process. The literature review was conducted by collecting scientific publications released between 2018 and 2025. The findings of this review confirmed that the CTL approach has a real positive impact in honing critical thinking skills and fostering learners' character that supports their academic achievement. Therefore, it can be concluded that CTL is an efficient and relevant pedagogical method to be applied in teaching high school chemistry.
Analisis Pemahaman Konsep Siswa pada Materi Stoikiometri Menggunakan Tes Diagnostik Lima Tingkat di SMA Negeri 4 Gorontalo Miftahul Nur; Nurhayati Bialangi; Julhim S. Tangio; Erni Mohamad; Erga Kurniawati; Astin Lukum
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.v2i4.4393

Abstract

The principles of chemistry learning emphasize that students study chemical concept in a structure and detailed manner. Until now, chemistry lessons are still a big challenge for teachers, because students often experience difficulties when learning chemical concept such as the concept of stoichiometry. This study aims to determine the level of concept understanding and the percentage of students' concept understanding on stoichiometry material using a five tier diagnostic test. The method used in this research is descriptive qualitative. The results showed: (1) the average level of students' concept understanding is classified in the category of lack of knowledge (LK); (2) the average percentage of students who understand the concept (SC) is 13.0% and the sub-concept with the highest percentage of understanding the concept (SC) is Relative Molecular Mass which is 33.0%. Of the 15 questions tested, question number 1 has the highest percentage of understanding the concept (SC) of 33.0%, while for the other 14 questions the average student is classified in the category of lack of knowledge (LK). It can be concluded that students' concept understanding on stoichiometry material is still classified as very low criteria.
Co-Authors Ahmad Kadir Kilo Akram La Kilo Astin Lukum Erga Kurniawati Erni Mohamad HARIS MUNANDAR Haris Munandar Hendri Iyabu Lukman A. R. Laliyo Mangara Sihaloho Mardjan Paputungan Marsya Divya Olii Masrid Pikoli Miftahul Nur Moh Musli Malajai Moh. Fajri Langgene Muh. Arwin Nurhayati Bialangi Opir Rumape Regina Olii Riryn Tahir Thayban Thayban Wiwin Rewini Kunusa Zulfa K Muslimin