Jurnal Kependidikan Ki Hajar Dewantara

Upaya Meningkatkan Pemahaman Konsep Matematika Siswa Melalui Penerapan CORE di SMKN 2 Mataram

Nurlaelah, Sri Yuliyanti, Eliska Juliangkary — Tue, 13 Jan 2026 00:00:00 +0000

Abstract: The aim of this research is to increase students' understanding of mathematical concepts through the application of CORE (Connecting, Organizing, Reflecting, Extending) at SMKN 2 Mataram. This research is classroom action research (PTK) which was carried out in two cycles and had four stages, namely action planning, action implementation, observation and reflection. The research subjects were students of class X RPL I SMKN 2 Mataram, totaling 32 students. The research instruments used were observation sheets and test sheets. The techniques for collecting data in this research are test techniques and observation techniques. There are two data analysis techniques used, namely quantitative and qualitative data analysis techniques. The result of this research is an increase in understanding of mathematical concepts for class X RPL I SMKN 2 Mataram students after implementing CORE learning capital. The test results increased students' understanding of mathematical concepts in cycle I by 50% (fair) while in cycle II it increased to 93.75% (very good). Observation results in cycle I were 65% (good) and observation results in cycle II were 100% (very good). Thus, it can be concluded that this study shows that the implementation of the CORE (Connecting, Organizing, Reflecting, and Extending) model in mathematics learning at SMKN 2 Mataram can significantly improve students' understanding of mathematical concepts. It is hoped that this research can become a reference for developing better similar research.

Pengaruh Model Pembelajaran Structured Inquiry Berbantuan Virtual Laboratorium Terhadap Pemahaman Konsep Siswa

Puput Febriani, Ika Nurani Dewi, Saidil Mursali — Wed, 14 Jan 2026 00:00:00 +0000

This study aims to determine the effect of the structured inquiry learning model assisted by virtual laboratories on students' conceptual understanding at SMP Negeri 1 Maronge. This study uses a quantitative approach using a quasi-experimental method and a pretest-posttest control group design. The population of this study were students of SMPN 1 Maronge, with the research sample consisting of students in grades VIIIA and VIIIC. The sampling technique used was cluster random sampling. The research instrument used was a concept understanding test. Data analysis was carried out using the N-gain test to measure the increase in conceptual understanding, and ANCOVA to test differences between groups. The results showed that the conceptual understanding of students in the experimental class who used structured inquiry learning assisted by virtual laboratories-PhET had an N-Gain value of 0.63 (moderate criteria), while the control class had an n-gain value of 0.54 (moderate criteria). The results of the Ancova test showed a sig value of 0.000 ˂ α = 0.05, indicating a significant difference between the experimental and control groups. Thus, it can be concluded that the structure inquiry learning assisted by virtual laboratory-PhET has a positive effect on improving students' conceptual understanding. The results of this study can be a reference for implementing inquiry-based learning and virtual technology in improving the quality of science learning.

Pengembangan Bahan Ajar Interaktif Berbasis Multimedia untuk Meningkatkan Minat Baca Anak Usia Dini

Elfira Angraini, Ary Purmadi — Fri, 30 Jan 2026 00:00:00 +0000

The aim of this study is to develop interactive, multimedia-based teaching materials to help increase reading interest in early childhood. The method used is research and development (R&D), which follows the Borg and Gall process with the following stages (1) potential and problem identification, (2) data collection, (3) product design, (4) expert validation and revision, and (5) limited field testing. The research involved two experts, two early childhood teachers, and ten children aged 4–6 years. Expert validation results indicated a high feasibility level (91%), teacher assessments yielded an average score of 90%, and children’s reading interest increased from 60% to 92% after using the developed media. Despite these results, the limited sample size and lack of advanced statistical testing restrict generalizability. The study concludes that multimedia-based interactive teaching materials can significantly enhance reading engagement in early childhood. Future research should integrate larger samples, additional statistical tests, and more immersive features such as augmented reality or adaptive feedback systems.

Analisis Kesulitan Siswa Slow Learner dalam Proses Conjecturing di SMPN 11 Mataram pada Materi Pola Bilangan

Mely Andayani, Sutarto, Ade Kurniawan — Fri, 30 Jan 2026 00:00:00 +0000

This study aims This study aims to examine the difficulties faced by slow learner students in the conjecturing process at SMPN 11 Mataram on the topic of number patterns. The research method used is qualitative with a descriptive approach. The subjects of this study are 5 students categorized as slow learners based on the IQ test conducted by a psychological consultation and testing agency using the culture fair intelligence test. Data were collected using supporting instruments, namely number pattern problem sheets and interviews. The data analysis techniques employed include data collection, data reduction, data display, and conclusion drawing and verification. The results of the study show that slow learner students face difficulties in the conjecturing process in solving number pattern problems after passing the stages of observing the case, organizing the case, searching for patterns, and predicting the patterns. At the stage of searching and predicting the pattern, 2 students identified the difference in the formed pattern, while 3 students did not understand the intent of the problem, which caused difficulties in advancing to the formulation of the conjecture, as they could not connect the difference with the general formula. It can be concluded that the difficulties faced by slow learner students in the process occur because the students find it hard to distinguish between the general formula and the specific formula, leading to confusion and an inability to determine the next number in the given pattern. This study provides insights for educators to design more effective teaching strategies for slow learner students, particularly in understanding number pattern concepts through a more concrete approach.

Peran Kegiatan Intrakurikuler dan Ekstrakurikuler dalam Penguatan Karakter dan Kompetensi Sosial Siswa di Lingkungan Sekolah

Fri, 30 Jan 2026 00:00:00 +0000

Intracurricular and extracurricular activities play a strategic role in shaping students’ character and social competence amid the challenges of modern education, which demand not only academic achievement but also the strengthening of moral values, ethics, and social skills. The urgency of this study is based on the need for schools to systematically integrate character education through activities inside and outside the classroom. This study aims to describe the role of intracurricular and extracurricular activities in strengthening character and developing students’ social competence at SMP IT Anak Sholeh Mataram. The method used is a qualitative approach with a descriptive research design. The research subjects include the principal, the vice principal for curriculum, and the vice principal for student affairs. The research instruments consist of observation sheets and interview guidelines containing 12 questions in six categories: character education, intracurricular activities, extracurricular activities, activity impacts, evaluation, and challenges and support. The research procedure was conducted through data collection, data reduction, data display, and conclusion drawing based on the Miles and Huberman model. The results indicate that intracurricular activities integrated with spiritual habituation, contextual learning, and active learning methods are able to instill values of discipline, responsibility, and cooperation. Meanwhile, extracurricular activities such as Scouts, OSIS (Student Council), and Basic Leadership Training contribute significantly to fostering leadership, empathy, social solidarity, and students’ interpersonal skills. The conclusion of this study confirms that the systematic integration of intracurricular and extracurricular activities, supported by teacher involvement and continuous evaluation, is effective in strengthening students’ character and social competence. The implications of this study highlight the need to strengthen collaboration among teachers, develop sustainable character-building programs, and enhance educators’ capacity through training so that character education can be implemented more optimally.

Analisis Dampak Penggunaan Augmented Reality Terhadap Hasil Belajar Kognitif Siswa SMP

Ricka Putri Rizal, Ary Purmadi — Fri, 30 Jan 2026 00:00:00 +0000

This study aims to analyze the impact of using Augmented Reality (AR)–based learning media on junior high school students’ cognitive learning outcomes. The study is motivated by the limited use of AR as an instructional medium to support students’ cognitive skills, despite its potential to create more interactive and meaningful learning experiences. A quantitative approach was employed using a quasi-experimental method with a pretest–posttest control group design. The research population consisted of 77 eighth-grade students at SMP Setia Darma Palembang, with two classes selected purposively based on academic ability equivalence, each comprising 30 students. Class VIII A was assigned as the experimental group and received AR-based learning media, while Class VIII B served as the control group and received conventional learning media. The research instrument was a cognitive learning outcomes test in the form of 15 multiple-choice items that had been validated and tested for reliability. Data were analyzed using an independent samples t-test after fulfilling the assumptions of normality and homogeneity. The results indicated a significant difference in cognitive learning outcomes between students who learned using Augmented Reality and those who learned through conventional media (p < 0.05), with an effect size of 0.82, indicating that the use of Augmented Reality had a significant effect on improving junior high school students’ cognitive learning outcomes.