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Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Published by International Forum of Researchers and Lecturers
ISSN : 29875315     EISSN : 29875374     DOI : https://doi.org/10.59581/konstanta.v3i3
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Immunology & microbiology Mathematics
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam; e-ISSN : 2987-5374, p-ISSN : 2987-5315 adalah jurnal yang ditujukan untuk publikasi artikel ilmiah yang diterbitkan oleh International Forum of Researchers and Lecturers. Jurnal ini adalah Jurnal Matematika dan Ilmu Pengetahuan Alam yang bersifat peer-review dan terbuka. Bidang kajian dalam jurnal ini termasuk sub rumpun Ilmu IPA, Ilmu Matematika, Ilmu Kebumian dan Angkasa. Jurnal Konstanta menerima artikel dalam bahasa Inggris dan bahasa Indonesia dan Jurnal ini terbit 1 tahun 4 kali (Maret, Juni September dan Desember). Berikut adalah ruang lingkup Jurnal Matematika dan Ilmu Pengetahuan Alam Yaitu: Sub Rumpun Ilmu IPA: 1. Fisika 2. Kimia 3. Biologi (dan Bioteknologi Umum) 4. Bidang Ipa Lain Yang Belum Tercantum Sub Rumpun Ilmu MATEMATIKA: 1. Matematika 2. Statistik 3. Ilmu Komputer 4. Bidang Matematika Lain yang Belum Tercantum Sub Rumpun Ilmu KEBUMIAN DAN ANGKASA: 1. Astronomi 2. Geografi 3. Geologi 4. Geofisika 5. Meteorologi 6. Bidang Geofisika Lain yang Belum Tercantum
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 225 Documents
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Pengaruh Suhu Terhadap Kadar Air pada Inti Sawit di Kernel Silo Pada Stasiun Kernel dengan Metode Rancangan Acak Kelompok Rifka Annaria Sibuea; Dilla Nurfadiah; M.E. Ernawati Siregar; Irvina Abelia Harahap; Sudianto Manullang; Putri Maulidina Fadilah
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.v2i4.4390

Abstract

In the kernel processing process, it is important to understand the effect of temperature on the water content of the palm kernel in the kernel silo, especially at the kernel station. This study aims to analyze the effect of temperature on the water content of the palm kernel in the kernel silo at the kernel station. This study used the Randomized Block Design (RBD) method. Data were analyzed using linear regression and analysis of variance (ANOVA). By using the Randomized Block Design (RBD) method, the results of the treatment hypothesis were obtained that (285.241) > (2.44) which means that was rejected and could not be rejected, it can be concluded that the experiment of each temperature given had a significant effect on the resulting water content. In the results of the repetition hypothesis that (1.655) < (2.901) which means that could not be rejected and was rejected, it can be concluded that the experiment of each temperature given did not have a significant effect on the resulting water content.
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.
Penerapan Model Project Based Learning (PBJL) Berbantuan Mind Map terhadap Keaktifan dan Hasil Belajar Peserta Didik Kelas IV SDN 106161 Laut Dendang Feby Nisha Bintang; Jelita Damai Haloho; Refi Yulina Nasution; Tabita Theresia
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.v2i4.4394

Abstract

Activeness and Learning Results of Class IV Students at SDN 106161 Laut Dendang Assisted by the PBJL Project Based Learning Model. The aim of this research is to increase student learning activity and achievement through the use of a project-based learning model supported by mind maps as a medium. This research is PTK, and the subjects are fourth grade students. Data is collected using test scores, observation results, and activity rubrics. Quantitative and qualitative descriptive methods were used to analyze the data. The results showed that students who were inactive at the beginning of the cycle (64.70%) increased to 76.47%, 26 were quite active, and 24 students who were active increased to 82.35%. For pre-cycle learning outcomes, grade 4 students at SDN Laut Dendang showed completeness of 4.4% 14 students, increasing to 5.9% 20 students, and 85% 29 students in cycle II. Thus, implementing project-based learning with the help of mind maps can increase student activity and learning outcomes.
Penerapan Metode Eksperimen dalam Pembelajaran IPA untuk Meningkatkan Motivasi dan Hasil Belajar Siswa Kelas VI di SD Negeri Sukasari 1 Dede Supriadi
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.v2i4.4400

Abstract

This study examines the effectiveness of the experimental method in improving the learning outcomes and learning motivation of third-grade elementary school students in science subjects. The research employed a quasi-experimental design with a pretest-posttest control group design, involving an experimental group taught using the experimental method and a control group taught with conventional methods. Data were collected using tests, questionnaires, and observation sheets. The findings reveal that the experimental method significantly enhances both learning outcomes and motivation compared to conventional methods. Statistical analysis using t-tests showed a significant difference (p < 0.05) between the experimental and control groups in terms of posttest scores and motivation levels. The experimental method proved effective in promoting active student engagement, deeper conceptual understanding, and intrinsic motivation. This method is recommended as a strategy to improve science learning quality in elementary schools.
Implementasi Project-Based Learning melalui Proyek Miniatur Ekosistem untuk Meningkatkan Kreativitas Siswa Kelas V di SD Negeri Winajaya III Karawang Sartika Ratnayu
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.v2i4.4407

Abstract

This study examines the implementation of the Project-Based Learning (PjBL) model through a miniature ecosystem project to enhance the creativity of fifth-grade students at SD Negeri Winajaya III. The research employed a quasi-experimental design with a pre-test and post-test group. The results revealed a significant improvement in students' creativity after implementing the PjBL model. Students demonstrated increased abilities in designing, developing, and evaluating projects. Additionally, PjBL facilitated collaborative and independent learning. These findings highlight the relevance of PjBL to the Merdeka Curriculum, which emphasizes project-based learning to foster 21st-century skills.
Optimalisasi Problem-Based Learning untuk Meningkatkan Kemampuan Berpikir Kritis Siswa dalam Pembelajaran Matematika : Sebuah Tinjauan Literatur Supardi Uki Sajiman; Leni Nurlela
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.v2i4.4413

Abstract

This research aims to identify and synthesize previous research related to optimizing Problem-Based Learning (PBL) in improving students' critical thinking skills in mathematics learning through a systematic literature review. Data was collected from relevant scientific articles published in the last 10 years using certain keywords through databases such as Google Scholar, Scopus, and Web of Science. The results of the literature review show that the application of PBL consistently plays a role in improving students' critical thinking abilities, especially when supported by strategies such as the use of relevant contextual problems, structured feedback, and directed teacher guidance. These findings confirm the constructivist theory which states that meaningful learning occurs when students are actively involved in authentic problem solving. However, there are variations in results across educational levels and countries, indicating the importance of contextual adaptation in the implementation of PBL. In addition, the lack of comprehensive practical guidance and long-term evaluation instruments is a major obstacle. The conclusions of this research emphasize the need to develop clearer PBL implementation guidelines and more accurate evaluation instruments to measure its impact on students' critical thinking abilities, as well as the potential of PBL in improving the quality of mathematics learning that encourages critical thinking skills as an important competency in 21st century education.
Implementasi Pembelajaran IPA untuk Membangun Karakter Religius Siswa di Kelas V MI Nurul Ulum Pegiringan Rifki Nuriza
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.v2i4.4473

Abstract

The implementation of science learning in schools not only aims to improve students' academic understanding, but also plays an important role in building religious character. Research shows that the integration of religious values in science learning can strengthen students' belief in religious teachings and increase their positive behavior. For example, Islamic values integrated into science materials at the SD/MI level can encourage students to be more convinced of the existence of Allah and follow His provisions, thus forming a strong religious character. In addition, learning approaches that prioritize routine activities such as praying together and reading the Qur'an before lessons have also proven effective in instilling religious character. Furthermore, the application of learning modules that integrate basic concepts of science with Islamic values, such as those conducted at the University of KH Abdurrahman Wahid Pekalongan, shows that students can better understand the material while internalizing religious values in their daily lives. Other studies also emphasize the importance of character education programs integrated in the curriculum, where religious activities at school, such as congregational prayers and holiday celebrations, contribute significantly to the formation of students' religious character. Thus, well-designed science learning can be an effective means to build students' religious character.
Studi Literatur: Implementasi Metode Pembelajaran Kooperatif Tipe Jigsaw dalam Meningkatkan Motivasi Belajar IPA Siswa SMP Yuneva Yuneva
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.v2i4.4508

Abstract

This study explores the implementation of the Jigsaw method, a cooperative learning strategy, in a junior high school setting and its impact on student motivation. The aim is to investigate how the Jigsaw method affects students’ motivation to learn, especially in the context of science learning. Active student participation in the learning process is emphasized in the Jigsaw Cooperative Learning Method. A literature review is the research methodology used, with an emphasis on sources released in the last ten years to ensure validity and relevance. Articles, books, dissertations, and research reports discussing the Jigsaw approach and its impact on junior high school students’ motivation are good places to find these sources. The findings indicate that the Jigsaw method significantly increases student engagement and motivation. Students are divided into diverse groups where each member learns a specific section of the material, the Jigsaw method encourages collaboration and peer teaching, which are essential for developing social skills and a sense of responsibility among students. This confirms that the Jigsaw method is a viable strategy for improving student motivation and learning outcomes in a junior high school setting.
Studi Literatur: Pengaruh Pembelajaran Berbasis Proyek terhadap Kreativitas dan Hasil Belajar Siswa SMP dalam Mata Pelajaran IPA Nur Aisah
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.v2i4.4509

Abstract

The study focuses on how junior high school (SMP) science students' creativity and learning outcomes are affected by project-based learning (PjBL). The goal of the study is to improve knowledge of how PjBL can affect the creativity and learning outcomes of junior high school science students. Promoting Student Involvement: PjBL is anticipated to boost student involvement in the educational process, which in turn facilitates more profound and significant learning. A qualitative approach was taken, and the literature review served as the mechanism for gathering data. This study intends to aid in the creation of more efficient teaching methods through a thorough selection of relevant material and methodical analysis techniques. The findings demonstrate that students' creativity and learning outcomes in scientific courses are significantly enhanced by project-based learning. PjBL teaches students how to use their knowledge in practical contexts in addition to helping them retain information. Therefore, it is anticipated that this research will offer insightful information to educators and policymakers in order to develop more innovative and successful teaching methods in classrooms.
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.

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