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Pentagon: Jurnal Matematika dan Ilmu Pengetahuan Alam
Published by Asosiasi Riset Ilmu Matematika dan Sains Indonesia
ISSN : 30481732     EISSN : 30628652     DOI : 10.62383
Core Subject : Education,
Mathematics
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
Arjuna Subject : Matematika - Matematika Komputer
Articles 101 Documents
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Model Pembelajaran Kolaboratif : Tinjauan Literatur Tina Suryani Siregar; Anike Renti Anita Sinaga; Apri Ananta Sitio; Icha Netanya Sianturi; Rajo Hasim Lubis
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 4 (2024): Desember: 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.v2i4.326

Abstract

This study aims to analyze the application of collaborative learning models in the digital era based on a literature review of 15 related journals. Collaborative learning, which involves social interaction between learners and utilization of digital technology, has great potential in improving student engagement, concept understanding, and 21st century skills. The analysis shows that technology-based collaborative learning, such as the use of Learning Management Systems (LMS), online platforms and other collaborative applications, is effective in improving learning quality. However, the implementation of this model also faces challenges related to technology access, digital literacy, and online learning management. In conclusion, collaborative learning model in the digital era can enrich learners' learning experience, provided it is supported by adequate infrastructure and training for educators. Technology-based collaborative learning has the potential to be a solution to create a more inclusive, interactive and competency-based education in the future.
The Effect Of The Project-Based Learning Model Assisted By Blended Learning On The Critical Thinking Ability Of Grade VIII Students at SMP Negeri 04 Paleleh Barat Arianti Masanggelo; Orbanus Naharia; Mariana Rengkuan
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 4 (2024): Desember: 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.v2i4.333

Abstract

This study was undertaken in response to the deficient cognitive abilities of students. The problem in this study is whether there is an influence of the project-based learning (PjBL) model, which is assisted by blended learning, on improving students' critical thinking skills in class VIII of SMP Negeri 04 Paleleh Barat. This study aims to determine whether the project-based learning (PjBL) model is assisted by blended learning in students' critical thinking skills in class VIII of SMP Negeri 04 Paleleh Barat. This study was performed in SMP Negeri 04 Paleleh Barat between April to May 2024, employing a quasi-experimental methodology. The sample in this study consisted of class VIII-A as the experimental group and class VIII-B as the control group. Both classes will undergo a learning outcome assessment comprising a pretest and a posttest. The data analysis revealed that the project-based learning (PjBL) paradigm, augmented by blended learning, significantly influenced students' critical thinking skills on the human excretory system in class VIII at SMP Negeri 04 Paleleh Barat. This is derived from the t-test results obtained using IBM SPSS for Windows version 2.2, with a significance value. If the p-value (2-tailed) is less than the significance level (alpha) of 0.05, specifically 0.002 < 0.05, then the null hypothesis (H0) is rejected and the alternative hypothesis (H1) is accepted.
Penerapan Konsep Kalkulus dalam Kehidupan Sehari – Hari Nurjana Nuraita; Sutrisna Sutrisna; Aryasti Salsa Sabilla; Iwan Cakrayana; Ul’fah Hernaeny
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 4 (2024): Desember: 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.v2i4.342

Abstract

Basic mathematical principles are applied in daily activities, especially in the field of economics, and are an important source in teaching and learning activities in the field of mathematics. This research aims to explore the basic mathematical principles of economics to support and reference in learning activities. The method used in the research is based on a literature review study. Based on the research conducted, there are six main topics discussed regarding basic mathematical concepts in economics, namely a) variables, constants, coefficients and parameters; b) equations and inequalities; c) set theory concepts; d) real number system; e) power rules, roots, factorization, as well as f) fractions, decimals and percentages.
Grafting dan Okulasi: Strategi Efektif untuk Perbanyakan Tanaman Berkualitas Tinggi Nashwa Intana Putri; Nurin Fatnata; Puput Fuji Aslamiah; Raden Elfa; Rifa Musyaropah; Ita Fitriyyah
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 4 (2024): Desember: 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.v2i4.351

Abstract

Vegetative propagation is an effective method for producing high quality plant seeds with similar characteristics to the parent plant. Techniques such as grafting and grafting are used to accelerate growth and increase plant resistance to pests and diseases. The advantages of this method compared to generative propagation include a faster fruiting period and consistency in the aroma and taste of the fruit. This research also highlights the importance of genetic compatibility between rootstock and scion and the use of phytohormones in the success of vegetative propagation techniques. The results show that both techniques can increase plant productivity, speed up fruiting time, and produce plants that are stronger and more adaptive to environmental conditions
Analisis Kesulitan Belajar Siswa Sekolah Dasar dalam Memahami Materi Kubus Suci Amalia Putri; Herawati Purba; Zikra Anastasya Az-Zahra; Victory Bangun; Elvi Mailani; Nur Rarastika
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 4 (2024): Desember: 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.v2i4.363

Abstract

This research discusses the analysis of students' learning difficulties in understanding cube building material. Mathematics is a basic science that must be studied from an early age because it is closely related to other sciences in order to advance to the next level. The research was created to solve students' learning difficulties at SD Negeri 104208 Cinta Rakyat. This research uses a qualitative approach with descriptive research type. The results obtained are that students still lack understanding of the material that has been presented by the teacher in the process of teaching and learning activities, there are many students who do not understand the material explained by the teacher. It can be seen that students' learning difficulties are also determined by low interest in learning and Lack of understanding of the material taught. Several factors include disinterest in mathematics and ineffective use of learning media. This research suggests that schools are expected to innovate in the use of learning media and learning methods that are changed and adapted to students' learning needs and interests.
Kajian Literatur Evolusi Kuda: Perubahan Kaki Dan Perubahan Gigi Kuda Berdasarkan Penemuan Fosil Nafasya Rahmandini; Nashwa Intana Putri; Virna Fianarita Rahmawati
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 4 (2024): Desember: 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.v2i4.364

Abstract

Evolution is characterized by changes over time with one or more inherited traits that we often find in populations of organisms. Fossils themselves can be said to be traces/remains/marks of a life of an organism (animal/plant) that can be directly or indirectly preserved with the earth's crust, naturally occurring and usually solid/hard with a geological age of more than 11,000 years. Horse evolution is one of the interesting adaptations, with morphological changes related to environmental changes. The purpose of this study was to determine the evolution of horses from the fossils found and, to find out how to adapt and the changes that occur from the environment and factors of natural selection. The method used in this study is a literature review from several reference sources. Horse evolution shows how species can adapt to the environment through significant morphological changes, such as a reduction in the number of fingers and an increase in body size. and the role of natural selection in forming physical characteristics that support survival.
Analisis Kadar N-total Tanah pada Pertumbuhan Tanaman Jagung yang Diberikan Pupuk NPK-Biochar-Kitosan Roslina Imran; Astin Lukum; Wiwin Rewini Kunusa; Yuszda K. Salimi; Erni Mohamad; Arviani Arviani
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.v3i1.384

Abstract

Corn (Zea mays) is a widely cultivated crop in Gorontalo and has high economic value as well as an important role in food security. Fertilization is one of the key factors that influence the productivity of corn plants. This research aims to determine the combination of NPK fertilizer doses granulated with Biochar-Chitosan in enhancing the growth and productivity of corn plants, as well as its impact on the quality of total N soil content. The study was conducted by planting corn, applying fertilizer, and observing its growth through measurements of plant height, leaf length, stem diameter, cob weight with husk, and cob weight without husk. The observational data were then analyzed descriptively, summarizing or classifying the data set to provide an overview of the data. Additionally, the analysis of soil N-total content was conducted before and after the application of fertilizers. The research results show that the combination of NPK-Biochar fertilizer doses has a significant impact on the growth and productivity of corn plants. The 7.5-gram NPK-Biochar fertilizer dose yielded the best results in increasing plant height, number of leaves, stem diameter, and cob weight with and without husks compared to other doses. Soil chemical property analysis also indicates that the application of NPK-Biochar fertilizer has a positive impact on the quality of the soil's total nitrogen content.
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.
Implementasi Model Pembelajaran Kontekstual Menggunakan Media Klinometer untuk Meningkatkan Hasil Belajar Matematika Siswa Muhammad Azkal Azkiya; Maya Rayungsari; Dewi Nurmalitasari
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.v3i1.391

Abstract

This research aims to enhance students' mathematics learning outcomes by implementing a contextual learning model utilizing clinometer paraji as a teaching aid. This study employs Classroom Action Research (CAR), which consists of two cycles, each involving the stages of planning, implementation, observation, and reflection. The participants in this study were grade X students from SMK Yadika Pasuruan. Data collection was carried out through observations of teacher and student activities, tests to measure learning outcomes, and student response questionnaires regarding the applied learning model. The findings reveal that the contextual learning model using clinometer paraji media effectively improves students' mathematics learning outcomes. Furthermore, students showed enthusiasm and increased interest in mathematics when learning through this approach. Therefore, the clinometer-based contextual learning model is a practical and effective method for teaching mathematics.
Identifikasi Senyawa Metabolit Sekunder Ekstrak Metanol Daun Pletekan (Reullia tuberosa L.) Nur Rafida Akub; Nurhayati Bialangi; Weny J.A Musa; Yuszda K. Salimi; Wiwin Rewini Kunusa; Ahmad Kadir Kilo
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.v3i1.392

Abstract

Indonesia is renowned for its abundant and diserve natural resources, including various plants. Many medicinal plants are traditionally utilized due to their therapeutic benefits. The utilization of minnieroot leaves as a traditional medicine shuld be supported by comprehensive studies to identify the active compounds, thereby omproving their quality, safety and afficacy. Secondary metabolites in minnieroot, particularly in the leaves, contain polyphenolic compounds, while the roots are known to contain flavonoids. This study aims to identify secondary metabolite compounds in minnieroot (Reullia tuberosa L.) leafs methanol extract. The study utilized methanol as a solvent for the extract solution became colorless, resulting in a extract yield of 8,02% of the leaf’s weight. The qualitative test confirmed the presence of secondary matebolites, specifically flavonoids and tannin in the methanol extract of minnieroot leaves. The final result from column chromatography separation shows that crystals are formed in the sixth vial. The crystals areb brownish blackn in color and weigh 0, 1235 g.

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