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Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa
Published by Asosiasi Riset Ilmu Matematika dan Sains Indonesia
ISSN : 30326230     EISSN : 30465427     DOI : 10.62383
Core Subject : Science, Education,
Earth & Planetary Sciences Mathematics
Bidang kajian dalam jurnal ini termasuk sub rumpun Ilmu Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa. Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 174 Documents
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Struktur Tegakan dan Tutupan Kanopi Ekosistem Hutan dan Parak di Kecamatan Lubuk Kilangan Kota Padang Zikri, Muhammad; Reki Kardiman
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): 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.v2i4.66

Abstract

This study aimed to determine the stand structure and tree canopy cover in forest and parak ecosystems in Lubuk Kilangan District, Padang City. This is a descriptive research with a direct observation throught purposive random sampling method. Data were collected by making six of 20 x 20 m plots in each primary forest and parak ecosystem. Tree diameters ≥10 cm were measured in each plot and canopy cover were collected using the Hemispherical Photography method using a mobile phone front camera equipped with a fish-eye lens. Data were analyzed in terms of stand density, basal area, Stand Basal Area (SBA), and percentage of canopy cover. The average tree density in the primary forest area was 913 individuals/ha, while the tree density in the parak was 467 individuals/ha. The SBA value in the primary forest was higher than in the parak, which was 64.10 m2/ha in the primary forest and 14,72 m2/ha in the parak. The average percentage of canopy cover in both areas shows that the percentage of primary forest canopy cover was greater than that of parak. The average value of the percentage of canopy cover in the forest area was 80.48%, while in the parak area was 71.23%. Correlation between tree density, canopy cover, SBA was only occured in primary forest area where the canopy cover negatively correlated with SBA. This study showed that the primary forest area and parak in Lubuk Kilangan Subdistrict have a good tree density, SBA and tree canopy covers.
Penggunaan Bahasa Pemrograman Python dalam Pembelajaran Kalkulus Fungsi Dua Variabel Surbakti, Nurul Maulida; Angelyca Angelyca; Anita Talia; Cecilia Br Perangin-Angin; Dina Olivia Nainggolan; Nia Devi Friskauly; Sikap Ruth Br Tumorang
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 3 (2024): 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.v2i3.67

Abstract

In everyday life, three-dimensional shapes are ubiquitous, manifesting in structures such as houses, bottles, and vehicles. These shapes, characterized by length, width, and height, represent the application of functions of two variables, particularly within spatial domains. This research employs Python programming to model functions of two variables, specifically focusing on spatial surfaces. Leveraging the Matplotlib module, graphical representations of these functions are generated, while the NumPy module facilitates mathematical analyses, including identifying extremal values, critical points, and tangent lines. Results demonstrate the efficacy of Python in efficiently modeling functions of two variables. Through this approach, readers gain insights into the inherent characteristics and behaviors of such functions within spatial contexts, thereby simplifying mathematical analyses and enhancing comprehension.
Penerapan Algoritma CNN Untuk Mendeteksi Tulisan Tangan Angka Romawi dengan Augmentasi Data Mochammad Toyib; Tegar Decky Kurniawan Pratama; Ibnu Aqil
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 3 (2024): 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.v2i3.69

Abstract

This research aims to develop and apply a Convolutional Neural Network (CNN) algorithm to detect handwritten Roman numerals. Handwriting recognition is a classic challenge in the fields of image processing and machine learning, especially for less common characters such as Roman numerals. In this research, we use data augmentation techniques to increase the diversity and number of datasets used in model training, which is expected to increase model accuracy and generalization. The dataset used consists of 1,120 images for testing and 280 images for validation, each of which is divided into 14 classes of Roman numerals I, II, III, IV, V, VI, VII, VIII, IX, X, L, C, D , and M. Image data was created directly using simple software, namely Paint version 6.3. This research uses the Python programming language and Google Colab as a computing platform. Model training was carried out for 300 epochs and showed significant accuracy in the 150th to 300th iteration. The results at the 300th epoch show an accuracy of 0.9607 and a loss of 0.1162. The implementation of this algorithm shows significant potential in practical applications, such as in the fields of education and historical documentation. The conclusion of this research is that data augmentation is an effective technique to improve the performance of CNN models in detecting handwritten Roman numerals.
Thematic Eksplorative Democratic Learning: Suatu Eksplorasi Konsep Energi di Pulau Para Kabupaten Kepulauan Sangihe Fabian Tamara; Patricia M. Silangen; Alfrie M. Rampengan; Jeane V. Tumangkeng
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): 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.v2i4.74

Abstract

This research aims to describe the results of exploratory learning about objects in the form of energy concepts on Para Island. The main research activities are exploring objects (Sun, ocean currents, sea waves, and wind), as well as scientific concepts and processes using the Thematic Exploration Learning in Democratic Interaction (HOTL-DI) type A model. Research at Tatoereng State Middle School Classes VII-VIII from June to July 2021. Exploration activities were carried out in three stages. The first stage is material exploration (objects, concepts, and scientific processes), carried out by the research team facilitated by the Pamong Teacher. The second stage is learning activities regarding energy concepts by class VII-VIII students. The results of the phase II assessment are used as a reference for going directly to the field to conduct exploration. Phase III exploration activities for target groups facilitated by mentors and researchers. The research results showed that at the beginning of the activity, all students experienced difficulties, but later, they developed the initiative to carry out their exploration. The exploration results show the development of the concept in the exploration step. Most students experienced improvement in identifying concepts and constructing a comprehensive network of energy concepts.
Implementasi Media Pembelajaran Interaktif Fisika Berbasis Aplikasi Android Dengan MIT App Inventor Vijen Vigel Koroh; Rolles Nixon Palilingan; Jeferson Polii; Jimmy Lolowang
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): 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.v2i4.76

Abstract

This research aims to create or design an interactive physics learning media application using MIT App Inventor on GLB and GLBB topics. This research applies the MDLC (Multimedia Development Life Circle) method by Luther-Sutopo in the application creation process. The following stages in MDLC are concept, design, material collecting, assembly, testing, and distribution. The Android application created was tested using two stages in MDLC, namely the alpha validator and beta validator, where the alpha validator consisted of material experts and media experts. In contrast, the beta validator comprised 14 students majoring in first-semester physics education. The analytical approach used is a qualitative method and a quantitative method to assess how appropriate the learning media created is. The research shows the results, namely a) Creation of interactive physics learning media based on Android applications using MIT App Inventor on GLB and GLBB topics, b) The level of feasibility of interactive physics learning applications based on Android applications based on media experts, namely 91% or very feasible, and based on material experts. Namely 90.6% or very feasible, and c) Based on the implementation and results of trials with students, the level of feasibility of the Android-based physics interactive learning application is 84.46% or worthy of being an alternative reference source for physics learning on GLB and GLBB topics.
Implementasi Media Jersey Berangka dalam Meningkatkan Hasil Belajar Pada Materi Mengurutkan Bilangan di SDN 02 Rowoyoso Kabupaten Pekalongan Luthfiyah Luthfiyah; Tiara Fadhilah; Barotut Taqiyah
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): 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.v2i4.77

Abstract

This research was conducted to improve learning outcomes on number sorting material using numerical jersey media in grade II SDN 02 Rowoyoso. This study uses a class action research method that uses II cycles in which each cycle consists of planning, implementing, observing, and reflecting activities. The data collection techniques used are observation, tests, and documentation. The results of classroom action research found that numerical jersey media can improve student learning outcomes. In the first cycle student learning outcomes were 55.55% (10 students who completed) and 44.44% (8 students who were not completed). While in cycle II student learning outcomes increased to 86.66% (13 students who completed) and 27.77% (5 students who have not completed). So it can be concluded that students experience improved learning outcomes and achieve the minimum completeness criteria determined.
Inventarisasi Tumbuhan Famili Euphorbiaceae Di Kelurahan Mekar Mulya, Kecamatan Panyilekan, Kota Bandung Agnie Airul Akira; Alvi Arumi Fadila; Aprilia Khoirunnisa Emnur; Ateng Supriyatna
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): 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.v2i4.78

Abstract

Euphorbiaceae is a group of plants often referred to as the sap tribe. Euphorbiaceae can be used as food, firewood, medicinal plants, building materials and also as ornamental plants. This study aims to determine the distribution of species from the Euphorbiaceae family located in Mekar Mulya Village, Panyileukan District, Bandung City. The method used, namely the direct exploration method by observing morphological characteristics, species, the number of each species and distribution patterns. The results showed that there were 6 species of plants included in the Euphorbiaceae family, including 21 individuals of Euphorbia milli, 52 individual of Sauropus androgynous, 108 individuals of Manihot esculenta, 7 individuals of Codiaeum variegatum, 3 individuals of Euphorbia tithymaloides and 6 individuals of Acalypha siamenis.
Penerapan Metode Pembelajaran Berbasis Proyek Sebagai Solusi Permasalahan Siswa Kurang Menyukai Pembelajaran Matematika Inri Ani Gultom; Naswa Amirah; Della Nanda Sidabalok; Sri Rahayu; Sushmita Marina Angel
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): 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.v2i4.84

Abstract

This research uses qualitative method, case study, to find out how effective the use of project-based learning (PjBL) method is to increase elementary students' interest and desire to learn mathematics. Interviews with teachers and students, participant observation, and document analysis are all methods used to collect research data. The results showed that the PjBL method proved effective in increasing elementary students' interest and desire to learn mathematics. This is shown by an increase in students' active participation in lessons, an increase in students' curiosity about math topics, and an increase in their math learning outcomes.
Studi Literatur: Analisis Penerapan Teknologi dalam Pembentukan Karakter Siswa Sarmila Fitri Yanti Nasution; Yahfizham Yahfizham
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): 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.v2i4.85

Abstract

Engineering is a science that studies the skills of creating tools and processing methods to perform various human tasks. Education is the conscious effort to prepare students for future tasks through teaching, learning and/or training. Character is a set of qualities that are always admired as a sign of a person's goodness, virtue and moral maturity. The purpose of this research is to conduct a literature review, ie. to find out the importance of technology in the development of a student's character. The method used is the Systematic Literature Review (SLR) strategy. SLR is a research method that aims to systematically identify, examine and interpret information obtained from journals at certain stages. The research results show that the integration of technology into education not only supports the learning process, but also plays an important role in the development of the student's character. Technology-based education encourages students to think critically, collaborate and adapt to the rapid changes of the digital age. Therefore, technology is an important tool to develop students who are academically intelligent in accordance with the values of Pancasila, but also with strong character and noble morals.
Peningkatan Hasil Belajar Matematika Siswa Kelas VII-A SMPN 3 Surabaya Melalui Model Kooperatif Teknik Think Pair Share (TPS) Prasetyo Kurniawan; Suhartono Suhartono; Sunardi Sunardi
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): 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.v2i4.88

Abstract

This study aims to improve students' mathematics learning outcomes through the implementation of cooperative learning model using the Think Pair Share (TPS) technique. The subjects of the study were the students of class VII-A at SMPN 3 Surabaya. This Classroom Action Research (CAR) was conducted in two cycles, each consisting of planning, implementation, observation, and reflection stages. Data were collected through tests, namely formative tests and post-tests. The results showed a significant improvement in students' mathematics learning outcomes after the application of the Think Pair Share technique. In the first cycle, the average student scores increased significantly compared to before the intervention, with even greater improvements observed in the second cycle. Besides improving learning outcomes, the application of the Think Pair Share technique also had a positive impact on student participation and interaction during the learning process. Students became more active in discussions and helped each other understand the lesson material. Therefore, the Think Pair Share technique has proven effective in enhancing the mathematics learning outcomes of students in class VII-A at SMPN 3 Surabaya. .

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