Poltek-EJS (Politeknik Katolik Saint Paul Sorong - Jurnal Elektronic System)
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PERAN GURU DALAM MENINGKATKAN MINAT BELAJAR IPA
Full text linkFifth-grade students' interest in learning science varies. There were high, good, medium and low. However, their average interest in learning was still relatively low. This study aims to find out the role of teachers in increasing students' interest in learning, supporting and inhibiting factors, and how to overcome them. We conducted descriptive-qualitative research. Data was obtained through interviews, observations and questionnaires. Then, it was analyzed using the main phases of data analysis: data reduction, data display, and drawing conclusions. We found the role of teachers in increasing students' interest in learning, namely as educators, mentors, motivators, mediators, facilitators and evaluators. The supporting factors were educators, facilities and student conditions. Meanwhile, there were various inhibiting factors, namely lack of parental assistance and lack of appreciation for student achievement. Efforts to overcome these obstacles were by collaborating with teachers and parents and giving appreciation to students who excel.
Keywords : Teacher’s role, interest in learning, science learnin
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION (TAI) TERHADAP HASIL BELAJAR SISWA KELAS XI IPA SMA NEGERI 1 REMBOKEN
Full text linkThis study aims to apply the Team Assisted Individualization (TAI) cooperative learning model on the material of the human circulatory system to the learning outcomes of Biology students in class XI IPA 1 at SMA N 1 Remboken in the 2021/2022 academic year. This research is a type of class action research (PTK). The average value of teaching completeness in cycle I obtained from Xl IPA 1 class students with the Team Assisted Individualization teaching model was 41,66% and in cycle II it progressed with an average completeness value of 83,33%. In the results of the research that has been carried out, it is concluded that the implementation of Team Assisted Individualization (TAI) can improve student learning outcomes on the material taught as seen from the results of the evaluation of students in cycle II, an increase of 83,33% has met the standard of completeness from cycle
ALGORITMA PELABELAN GRACEFUL UNTUK GRAF BINTANG MULTI-LEVEL
Full text linkGraph theory is a topic in mathematics that is still relatively new and developing rapidly. Graph theory is used to simplify and solving problems like connection, networking, travelling or flow. One of the very interesting topics in graph theory is graph labeling. Graceful labeling first introduced by Rosa as β-labeling. A graceful labeling (or β-labeling) on a graph G involves assigning labels to its set of vertices, forming an injective function f that maps each vertex to the set of non-negative integers {0, 1, 2, ..., |E(G)|}, where |E(G)| denotes the number of edges in G. This induces a bijective function f* that maps the edges of G to the set of positive integers {1,2,...,|E(G)|} which the edges label obtained by absolute number of the subtraction between 2 neighboring vertex labels. The Graceful Tree Conjecture (GTC) posits that all trees can be gracefully labeled, a hypothesis still unproven. The quest for graceful labeling, particularly for specific types of trees, continues to be an active zona of research. One of the graph that already proven can be labeled with graceful labeling is star graph. Now we gonna prove graceful labeling for star graph, if each leaf in the star graph is connected to m new leaves. We call it multi-level star graph. Exploring these methods aims to extend the concept to other graphs, contributing to the identification of more gracefully labeled trees
PENERAPAN PEMBELAJARAN BERBASIS STEM UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI SISTEM KOLOID DI SMA NEGERI 2 TOMOHON
Full text linkThis research aims to determine the application of STEM-based learning in improving student learning outcomes in colloid system subjects at SMA Negeri 2 Tomohon. This research is Class Action (Class Action Research). The subjects in this research were 12 students in class XI MIA of SMA Negeri 2 Tomohon. This research includes 4 stages: (1) planning stage, (2) implementation, (3) observation, (4) reflection. The data collection methods used in this research are observation, interviews and post-test methods. The results of the research show that with the application of the STEM method, student learning outcomes increased, namely from cycle I 73.91%, in cycle II with improvements in actions in the form of group division, carrying out colloid system project practicum, with guidance from start to finish in practicum activities, then there was an increase from 73.91% (cycle I) to 86% (cycle II)
PENERAPAN E-LKPD BERBASIS PENDEKATAN CONTEXTUAL TEACHING AND LEARNING (CTL) TERHADAP HASIL BELAJAR PADA MATERI STRUKTUR ATOM DI SMA NEGERI 2 TOMOHON
Full text linkThe aim of this research is to increase knowledge in the application of E-LKPD in chemistry learning in an effort to improve student activities and learning outcomes in atomic structure material at SMA Negeri 2 Tomohon. This research is classroom action research, the sample in this research is class X IPA 1 in implementing E-LKPD based on the CTL (Contextual Teaching and Learning) approach to atomic structure material. Data is collected through activities, responses and student learning outcomes. The research results showed that the percentage of student activity for cycle I, cycle II and cycle III was 85%, 96% and 100% respectively, student learning response was 84%. Student learning outcomes in cycle I, cycle II and cycle III were 60%, 92% and 100%. Student activity, response and learning outcomes increase with the application of the Contextual Teaching and Learning model to atomic structure material which can improve student learning outcomes.
 
ANALISIS KESULITAN SISWA DALAM MENYELESAIKAN SOAL FISIKA PADA MATERI HUKUM ARCHIMEDES BERDASARKAN MODEL POLYA DI SMA
Full text linkPenelitian ini bertujuan untuk mengetahui kesulitan yang dialami siswa dalam menyelesaikan soal fisika pada materi hukum archimedes berdasarkan model polya. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Penelitian ini dilaksanakan di SMA NEGERI 1 TOMBATU. Subjek dalam penelitian ini adalah 25 siswa kelas XI A 1 kemudian diambil 3 siswa untuk sampel wawancara yang terdiri dari 1 siswa berkemampuan baik, 1 siswa berkemampuan cukup dan 1 siswa berkemampuan kurang. Teknik pengumpulan data yang digunakan melibatkan tes yang kemudian dianalisis berdasarkan tahap-tahap model polya yaitu Memahami masalah, Merencanakan pemecahan permasalahan, Melaksanakan rencana pemecahan masalah dan Memeriksa kembali kemudian dilakukan wawancara pada 3 orang siswa yang menjadi subjek penelitian. Analisis data melalui tahap reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa pada tahap memahami masalah seluruh siswa mampu memahami masalah dengan baik, yaitu dengan menuliskan diketahui dan ditanyakan pada soal dengan benar dan tepat. Pada tahap merencanakan pemecahan permasalahan semua siswa mampu menuliskan dan menentukan persamaan yang digunakan dengan baik dan benar. Pada tahap melaksanakan rencana pemecahan masalah dan memeriksa kembali ada beberapa siswa yang mengalami kesulita
EXPLORING THE RELATIONSHIP BETWEEN TRANSFORMATIONAL LEADERSHIP AND ORGANIZATIONAL CITIZENSHIP BEHAVIOR: A CASE STUDY OF UNIVERSITY NANI BILI NUSANTARA
Full text linkIn today’s rapidly changing and increasingly complex environment, the sustainable and contextual tasks of lecturers are important issues. Thus, this cross-sectional study investigates the impact of transformational leadership on Organizational Citizenship Behavior in higher education. Data were collected from 48 Lecturers at Nani Bili Nusantara University – Indonesia. Partial least square (PLS) was applied to analyze the proposed hypotheses. Our analysis results reveal that Transformational Leadership has a significant effect on Organizational Citizenship Behavior. Our results offer theoretical and practical implications for the development of the concepts of Transformational Leadership and Organizational Citizenship in higher educatio
PENERAPAN MODEL PROBLEM BASED LEARNING DAN MODEL PEMBELAJARAN LANGSUNG PADA PEMBELAJARAN MATEMATIKA OPERASI MATRIKS DI SMK N 1 TOULUAAN
Full text linkThis study examines the application of two different learning models in learning matrix operation mathematics at SMK N 1 Touluaan. This research used experimental method with pretest-posttest experiment group design, involving two randomly selected classes with the number of samples of each class of 20 students and the experimental class applied Problem-Based Learning and the control class applied direct learning. The results showed that there was a significant difference between the learning outcomes of students taught using the Problem-Based Learning model and students taught using the direct learning model. In this study using the t-test to test the data, with the results of the value of t_hitung = 3.239041637> t_tabel = 1.68595 with a real level α = 0.05 this means reject H_0 and accept H_1. The Problem-Based Learning model is proven effective in improving student learning outcomes on matrix operation material
KEMAMPUAN BERPIKIR KREATIF MENGGUNAKAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) PADA MATERI SIFAT-SIFAT CAHAYA DI SMP NEGERI 8 SATAP TONDANO
Full text linkPenelitian ini bertujuan untuk mengetahui Kemampuan Berpikir Kreatif Siswa Menggunakan Model Pembelajaran Problem Based Learning (PBL) pada Materi Sifat-sifat Cahaya di SMP Negeri 8 SATAP Tondano. Jenis penelitian ini adalah pre-eksperimental design dengan pengambilan sampel secara purposive sampling. Subjek penelitian yaitu siswa kelas VII yang berjumlah 13 orang siswa. Teknik pengumpulan data penelitian menggunakan tes. Berdasarkan hasil penelitian pada indikator kemampuan berpikir kreatif fluency siswa dengan menerapkan model problem based learning diperoleh skor rata-rata secara klasikal yaitu 0,93 kategori kurang kreatif dan secara individual dengan kriteria kurang kreatif, sedangkan kemampuan berpikir flexibility siswa secara klasikal diperoleh skor rata-rata yaitu 0,60 kategori kurang kreatif dan secara individual dengan kriteria kurang kreatif dan untuk kemampuan berpikir origanility secara klasikal sebesar 1,05 kategori cukup kreatif dan secara individual dengan kriteria cukup kreati
PENGARUH KONSENTRASI MOLARITAS KOH TERHADAP SIFAT KELISTRIKAN BIO BATERAI AMPAS KOPI
Full text linkSpent coffee grounds are an abundant organic waste material. Spent coffee grounds have significant potential as an environmentally friendly alternative energy source in bio-battery technology. This study aims to analyze the effect of KOH molarity concentration on the electrical properties of coffee ground-based bio-batteries. Variations in KOH molarity solutions of 1M, 3M, and 5M, each mixed with 50 grams of spent coffee grounds, were utilized to evaluate their effect on the electrical properties, including current, voltage, and power output. The results indicate that increasing the molarity concentration significantly enhances the bio-battery's performance, as evidenced by increased voltage and maximum power output. The highest electrical power output, 97.2 mW, was achieved at a 5M KOH concentration. The study concludes that selecting the appropriate molarity concentration is a key factor in optimizing the performance of coffee ground-based bio-batteries. This research contributes to the advancement of renewable energy development from organic waste