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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 Proses Karbonasi Terhadap Konduktivitas Listrik Arang Bambu Sebagai Elektroda Superkapasitor Messy Shania Pongajow; Heinrich Taunaumang; Farly R. Tumimomor; Alfrie M. Rampengan
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.1880

Abstract

. Electrical energy is a primary need for every human being. Supercapacitors are sophisticated electrical energy storage devices that combine the advantages of conventional batteries and capacitors so that they have the ability to store energy better. The use of electrode materials is one of the factors that affect the effectiveness of supercapacitors, electrode materials can be made from polymeric materials, metal oxides, and porous materials such as activated carbon. Activated carbon is made through two main stages, namely the carbonization and activation stages. Bamboo charcoal is a solid product that uses bamboo raw materials through a carbonization process under high temperatures (high temperature charcoal). This research is a research using experimental method. From the research results, carbonized bamboo charcoal at temperatures of 300˚C, 350˚C, 400˚C, 450˚C and 500˚C has a higher electrical conductivity value as the carbonization temperature increases. So it can be concluded that the temperature in the carbonization process affects the electrical conductivity of bamboo charcoal.
Analisis Kemampuan Pemecahan Masalah Matematis Siswa Pada Materi Fungsi Komposisi Fenti Amanda Putri; Selvia Erita
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.1897

Abstract

Problem-solving is so important that it makes mathematics teaching a common goal. It is estimated that students who are capable of solving these problems can contribute to the economic growth of their country. Therefore, researchers are interested in analyzing students' ability to solve mathematical problems. Data is taken using the essay test instrument and analyzed using a descriptive quantitative approach. The subject of this study is a student of class XI SMAN 3 Sungai Penuh of 29 people. This research found that students' abilities in composition functions material were well assessed. However, in the problem-solving capabilities measured based on problem-solving indicators, there is still an obstacle to the first indicator, which is to display what is known and what is asked. But for the other three indicators, there are only a few obstacles even no obstacles at all. It is hoped that the obstacles experienced by students in this research can also be the background for further research.
Pengembangan E-Modul Pembelajaran Kimia Berbasis PBL Pada Materi Larutan Elektrolit Dan Non Elektrolit Beatrix Elviati; Nursina Sya’bania; Apriani Megati
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.2000

Abstract

This research is a development research that aims to develop PBL-based chemistry learning E-Modules on electrolyte and non-electrolyte solution materials that are valid, practical and effective for use in the learning process. The development model used in this study refers to the Hannafin and Peck development model which consists of 3 stages, namely: (1) needs analysis (Needs Assessment), design stage (Design), and development/implementation stage (Develop and Implementation). This learning E-Module has gone through the validation stage by validators/experts and has gone through small-scale trials and field trials so as to produce a learning E-Module that is valid, practical and effective. Based on the results of data analysis, the average validity of the material was 0.91 and the validity of the media was 0.92 and was in the valid category. The practicality of the E-Module is obtained from the assessment of observers by 100% being in the very practical category, teacher responses of 94.64% and being in the very practical category, and student responses of 91% and being in the practical category. The effectiveness of the E-Module was obtained by 86.36% of students who achieved learning completeness scores. Based on the results of the study, it was concluded that the development of PBL-based chemistry learning E-Modules on electrolyte and non-electrolyte solution materials developed was valid, practical and effective for use in learning.
Penerapan Algoritma Genetika Dalam Penyebaran Optimasi Jaringan Sabrina Aisha Putri Lubis; Yahfizham Yahfizham
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.2021

Abstract

A network is a system in which computing devices are connected to each other and can share data and resources. To establish a connection, these network devices follow certain rules called communication protocols, both through physical and wireless technology. The performance level of a Wi-Fi network, for example inside a building, can be measured by how well users receive the Wi-Fi signal. The goal of this network is to establish timely and precise communication between users and data senders. A successful Internet connection often depends on receiving a strong and consistent signal, while a fluctuating or weak signal is undesirable. A commonly used approach to measure the average Wi-Fi signal level in a building without needing to understand every detail of the building layout is to use Single Slope Modeling (1SM). This model bases its calculations on the distance between the sending and receiving devices, so it can be used to analyze the performance of Wi-Fi networks, as is done in the case of educational institution buildings. Apart from that, in an effort to optimize network performance, a genetic algorithm was also created which was implemented using the PHP language. This algorithm is based on the principles of genetic algorithms to overcome optimization problems that may arise in the context of such networks.
Pengaruh Self Confidence Terhadap Kemamapuan Berpikir Kritis Matematis Danil Saputra; Tasnim Rahmat; M. Imamuddin; Ulva Rahmi
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.2024

Abstract

This study aims to determine the significant effect of self confidence on students' critical thinking skills. The hypothesis in this study is that there is a significant effect of self-confidence on the ability to think critically mathematically.This type of research is correlational. The population in this study were all VIII grade students as many as 6 classes totaling 188 students. The research sample was taken randomly 30 students. The data in this study are in the form of self confidence questionnaire and mathematical critical thinking skills questions. The data analysis technique uses correlation analysis. The results of this study obtained t_0 = 3.391 and t_table = 1.70 at the real level α = 0.05. This shows that t_0> t_table which means H_(0) is rejected or H_1 is accepted which states that there is a significant effect of self confidence on the critical thinking skills of class VIII students. The effect of self-confidence on mathematical critical thinking ability is a moderate relationship with r_(Xy) = 0.54 and obtained a coefficient of determination of 29.16%
Kajian Etnobotani Dalam Upacara Ngaruwat Bumi Di Kampung Adat Banceuy Desa Sanca Kecamatan Ciater Kabupaten Subang, Jawa Barat Indrianita D M Nur Azizah; Tri Cahyanto
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.2028

Abstract

The people of the Banceuy traditional village, Sanca Village, Ciater District, Subang Regency have a unique tradition of expressing gratitude for natural products, especially rice (Oryza sativa), which has been carried out since the time of their ancestors and is known as the Ngaruwat Bumi ceremony. Ngaruwat Bumi is a traditional ceremony that is routinely held every year at the end of the month of Rayagung. This research aims to analyze ethnobotanical studies on the Ngaruwat Bumi ceremony in the Banceuy Indigenous village community. The research was carried out in three stages, namely literature study, interviews, and data processing and analysis. The data taken is primary data and secondary data. Primary data is data obtained directly in the field through interviews with respondents. Meanwhile, secondary data is data obtained from previously existing research or publications. Sampling used a purposive random sampling method with 15 respondents. The research results showed that six types of plants were used in the Ngaruwat traditional ceremonies carried out by the people of the Banceuy traditional village, namely Oryza sativa, Arenga pinnata, Cocos nucifera, Cordyline fruticosa, Coleus scutellarioides, Justicia gendarussa, and Musa paradisiaca.
Analysis of Creative and Collaborative Thinking Abilities on Animalia Material in Class X Students of SMA Negeri 1 Airmadidi Josua Gigir; Carolin Manuahe; Decky W. Kamagi
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.2079

Abstract

Biology learning demands learning competencies in the realm of high-level understanding, so many students find it challenging to develop their critical thinking skills and, therefore, have difficulty completing various concepts in biology. For this reason, a particular way of learning is needed so that it fosters students' critical thinking skills through creative and collaborative thinking skills so that they can be well-honed in order to be able to solve various complex concepts in biology. Therefore, this research aims to determine the creative and collaborative thinking abilities of class X SMA Negeri 1 Airmadidi students on Animalia material, focusing on their creative and collaborative thinking abilities. This type of qualitative research describes data obtained from a rubric containing research indicators. The research results show that the profile of students' creative and collaborative skills shows good development based on the indicators obtained. Indicators of creative and collaborative thinking abilities are at scores 3 and 4, which shows that students can give excellent and precise answers to both questions through discussions and written tests. Based on these results, the analysis of creative and collaborative thinking abilities in class X12 students at SMA Negeri 1 Airmadidi is in good ability results.
Effectiveness of Using the Independent Curriculum Based Problem Based Learning Model in Learning Trigonometry Material in Class X State High School 8 Manado Andra Christine Tombokan; James U. L. Mangobi; Jorry Ferry Monoarfa
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.2083

Abstract

The objective of this study is to assess the efficacy of employing the Problem-Based Learning approach in the acquisition of Trigonometry concepts. This study examines four metrics of learning efficacy: student learning outcomes, student engagement during the learning process, student feedback on learning, and the teacher's aptitude in facilitating learning. This research falls under the category of quantitative descriptive research. The research was conducted at SMA Negeri 8 Manado during the odd semester of the 2023/2024 academic year. The study included a sample of 38 students from class X-I. The employed data collection approaches include testing, observation, and administering questionnaires. The study determined that the utilization of the Problem-Based Learning (PBL) approach in teaching Trigonometry content yielded positive results. This is exemplified by the attainment of the four metrics that measure the efficacy of utilizing the learning model: (1) Student learning results in the subject matter are classified as thoroughly comprehensive. (2) Student activities during the learning process are classified as satisfactory. (3) Students exhibit a favorable attitude towards the learning process. (4) The teacher's aptitude for overseeing the learning process is exceptional.
Analisis Kemampuan Pemecahan Masalah Dalam Menyelesaikan Soal Matematika Di SMK Retno Wulandari; Yulia Haryono; Lita Lovia
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.2092

Abstract

This research is motivated by the lack of students' ability to solve problems. The purpose of this research is to find out how the ability to solve problems. The type of research used is descriptive-qualitative with a case study research design. The research subjects were in class XI TPM 1 which consisted of 18 students. The subject chosen for the interview was one student who was selected based on his test results. The research instrument was test results in the form of essays and interviews. The results of the research that has been done show that the most problem-solving abilities are at the re-examining stage.
Analisis Keputusan Mahasiswa Dalam Menentukan Kopi Berdasarkan Kandungannya Firda Nasywaa Sabila; Hafshah Zainab Mujahidah Ibnatu Muslim; Irfan Setiawan; Nazhwa Praditha Budiman
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : 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.v2i1.2125

Abstract

As students who tend to be oriented towards in-depth knowledge and understanding, analysis is key in making decisions regarding coffee consumption. In this case, coffee content analysis is the main factor taken into consideration in determining their choice. The findings of this study indicate that students consider various factors in their decisions in choosing the type of coffee based on its ingredients. Influencing factors include caffeine, antioxidants, fat, and sugar content. College students have different preferences regarding the level of caffeine in coffee, which can be influenced by their energy needs and their tolerance level for caffeine. The aim of this research is to analyze the factors that are the main considerations for students in determining the choice of coffee based on its content. This research uses a qualitative and quantitative approach that focuses on questionnaires with a 1-4 Likert scale and bold interviews. The number of participants in this research was 53 people and was reduced to 6 people being interviewed. This qualitative and quantitative approach shows that analysis of factors in selecting coffee based on its content is not a benchmark for coffee consumption. The coffee consumed by several respondents is adjusted to their body condition or personal health. The factors that become a benchmark for choosing coffee consumption are not based on its content but based on needs and health.

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