Abstract:Pecahan merupakan salah satu materi matematika yang penerapannya sering dijumpai dalam kegiatan sehari-hari. Penelitian ini bertujuan mengukur sejauh mana siswa kelas IV SD Negeri 010091 Kisaran Baru memahami konsep pecahan.…
han. Metode yang digunakan berbentuk deskriptif kualitatif dengan melibatkan 26 siswa sebagai subjek kajian. Data dihimpun melalui empat cara, yakni tes, pengamatan, wawancara, dan penelusuran dokumen. Hasil kajian memperlihatkan bahwa pemahaman siswa atas konsep pecahan tergolong masih rendah, dibuktikan oleh angka ketuntasan belajar yang hanya menyentuh 23,07%. Kondisi tersebut dipengaruhi oleh sejumlah hal, di antaranya lemahnya penguasaan dasar pecahan, rendahnya keterlibatan siswa saat belajar, serta metode pengajaran yang belum diterapkan secara maksimal. Mengacu pada hasil tersebut, diperlukan strategi pembelajaran yang lebih interaktif untuk mendorong peningkatan pemahaman siswa terhadap pecahan.
Fraction is a fundamental mathematical topic that frequently appears in everyday situations. This study set out to examine how well fourth-grade students at SD Negeri 010091 Kisaran Baru grasp the concept of fractions. A qualitative descriptive design was employed, with 26 students taking part as participants. Four data-gathering techniques were used: testing, observation, interviews, and document review. Findings revealed that students’ grasp of fraction concepts was still limited, shown by a completion rate of only 23,07%. Several factors contributed to this outcome, among them a weak foundation in basic fraction concepts, low student involvement during lessons, and teaching methods that had not been optimally applied. Based on these findings, more interactive learning strategies are needed to help strengthen students’ conceptual grasp of fractions.
Abstract:This research was undertaken to analyze the influence of the Wordwall application on the speaking skills of eleventh-grade students at SMAN 1 Ciruas. Consequently, Wordwalluantitative methodology and a quasi-experimental…
design involving 82 participants, organized into two equally sized groups, namely the experimental and control groups. Data collection was conducted through speaking assessments administered prior to and following the treatment. The findings showed that students who received the treatment achieved better improvement in speaking skills than those in the control group. The average score achieved by the experimental group increased from 63.90 to 83.12, whereas the control group’s mean score rose from 66.15 to 74.34. The hypothesis test results revealed a significance value below 0.05 (p < 0.001), providing evidence of a statistically significant difference between the groups. The results point to the fact that the Wordwall application was effective in enhancing students’ speaking skills.. Consequently, Wordwall can be considered an effective technology-based learning tool for promoting speaking skill development in English language learning.
Abstract:This research examines the application of the Brain-Based Learning (BBL) model to reduce math anxiety in teaching fractions at the elementary school level. This study used a quantitative approach with a pretest–posttest…
t quasi-experimental control group design involving two fifth-grade classes: one experimental class that received fraction instruction through BBL and one control class that was taught using conventional methods, with 40 students in each group. Mathematics anxiety related to fractions was measured using a modified mathematics anxiety scale for elementary school students, while fraction achievement was evaluated through a valid written test. The results showed that both groups had relatively equivalent initial abilities, supported by normal and homogeneous pretest data and no significant differences in pretest scores. After the intervention, the experimental class showed consistently lower levels of anxiety related to fractions in all dimensions (tests/assessments, classroom learning situations, fraction tasks, and fraction avoidance) and significantly higher post-test scores than the control class, with an average difference of about seven points. The findings show that BBL, which aligns the learning process with the way the brain naturally learns by fostering positive emotions, multisensory experiences, and meaningful social interaction, is effective in improving students' understanding of fractions while simultaneously reducing their math anxiety. This study offers a unique perspective by conducting an experimental trial of BBL as a targeted intervention for math anxiety related to fractions in Indonesian elementary schools and highlighting its potential as a neuroeducation-based pedagogical strategy to foster numeracy and emotional well-being in math learning.
Abstract:This study investigates the stress concentration factor in an infinite steel plate with a thickness of 1 cm, containing an elliptical hole, subjected to biaxial loading at infinity. The elliptical hole has semi-axes a=5.0 cma…
0 cma = 5.0 \, \text{cm}a = 5.0 cm (major axis) and b=2.5 cmb = 2.5 \, \text{cm}b = 2.5 cm (minor axis). The applied stresses at infinity are a tensile stress of σ1=100 kg/cm2\sigma_1 = 100 \, \text{kg/cm}^2= 100 kg/parallel to the major axis and a compressive stress of σ2=−100 kg/cm2\sigma_2 = -100 \, \text{kg/cm}^2= -100 kg/ perpendicular to the major axis. The material properties include Young's modulus E=2.1×106 kg/cm2E = 2.1 \times 10^6 \, \text{kg/cm}^2E = 2,1. kg/ and Poisson's ratioν=0.3\nu = 0.3 = 0.3. Using analytical solutions from classical elasticity theory, the maximum tangential stress at the edge of the ellipse is calculated as σmax=600 kg/cm2\sigma_{\text{max}} = 600 \, \text{kg/cm}^2= -600 kg/, yielding a stress concentration factor of kσ=σmax/σ=6k_\sigma = \sigma_{\text{max}} / \sigma = 6 = =6. Additionally, a finite element (FE) analysis based on the Salerno and Sahoni problem for a quarter section of the plate results in kσ=3.1125k_\sigma = 3.1125 = 3.1125 for a configuration with s/r=5s/r = 5s/r = 5, showing a discrepancy of 1.3% compared to the theoretical value of kσ=3.1k_\sigma = 3.1= 3.1 from Peterson's Stress Concentration Factors. The results demonstrate good agreement between the calculated model and theoretical predictions, validating the accuracy of the FE approach for stress concentration analysis in such configurations.
Abstract:This research aims to create teaching materials on energy conversion for fourth graders at SDN Cilangkap 08 Elementary School in Depok. The development of these materials uses the ADDIE model (Analysis, Design, Development,…
nt, Implementation, Evaluation). It started with analyzing the needs, studying the students, designing the product, developing the e-module, getting expert validation, and then testing the e-module on energy transformation. The results from the experts in media, language, and subject matter showed that the e-module using Heyzine flipbooks was valid for use, with an average percentage of 96%. In the testing phase, 32 students provided responses that were highly suitable for use, with an average percentage of 96%. Based on the research results, it can be concluded that the e-module learning material using Heyzine flipbooks on the topic of energy transformation developed in this study is proven to be valid, easy, and engaging for students to use, and highly suitable for study.
Abstract:Research on the development of PowToon-based video learning media on the material on the definition of angles and various angles. The purpose is to discover the development of Powtoon-based video learning media and the feasibility…
easibility of Powtoon-based video learning media developed for grade III students of SDN Singajaya 01 through the learning process carried out at school. The method used in this study is the ADDIE method which consists of 5 stages, namely Analysis, Design, Development, Implementation, and Evaluation. In this study, a validation test was carried out on experts, namely media, language experts, and material experts. The results of the validation of media experts obtained as many as 96% with very feasible criteria. The results of the validation of the language experts obtained 100% with the feasible criteria, and the results of the validation of the material experts obtained 90% with very feasible criteria. The results of the student response questionnaire obtained as much as 92% with very feasible criteria. These results show that powtoon-based video learning media on the understanding of angles and various angles has proven to be valid, interesting, innovative and very feasible to be used in the learning process. This study recommends the development of PowToon-based video learning media that can be used in classroom learning.
Abstract:The purpose of this research is to develop E-LKPD based on project-based learning assisted by live worksheet science learning to improve understanding of concepts in elementary schools and the effectiveness of E-LKPD based…
ed on project-based learning assisted by live worksheet, as well as to find out the response of teachers and students in grade V of SDN Dewi Sartika 2 Aut The implementation of E-LKPD single substance material plays a role in improving thinking skills through classroom learning. The type of research is the ADDIE model approach, (Analysis, Design, Development, Implementation, and Evaluation). The product validation test was conducted by computer science media experts, Indonesian language experts, and science material experts. The validation results by media experts were 89.0% of the criteria were very feasible, linguists 96.0% of the requirements were very doable, and science materials experts 90.3% were very feasible. The results of the student response questionnaire were 91.5%, the response of class teachers was 90% in the appropriate category, and the average effectiveness score of using E-LKPD was 89.6% of the criteria as expected. The results show that project-based learning E-LKPD using live worksheets is feasible to use in the learning process and is effective in improving the thinking skills of elementary school students.
Abstract:The purpose of this study is to develop a science literacy-based E-LKPD for elementary school students and to determine the feasibility of Science Literacy-based E-LKPD using Livework in science learning to improve the understanding…
nderstanding of science concepts in grade V elementary school students of SDN Panaragan 2 Bogor City. The method used in this study is the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) method. This research begins with a needs analysis, making an E-LKPD design, validation by experts, and revising the E-LKPD, after which the E-LKPD is tested on a limited basis and evaluated. The study results show that the effectiveness of E-LKPD based on science literacy has met the criteria very feasible by obtaining a percentage of media experts of 88%, 95% from linguists, and 94% from material experts. Meanwhile, a limited trial conducted on 30 students in class V received a response with a percentage of 93% and a teacher response with a percentage of 92%. Based on these data, it can be concluded that science literacy-based E-LKPD is very feasible to be used by students and teachers as teaching materials on water cycle materials in grade V of Elementary School.
Abstract:The development of this animated video media is based on the problems found at SD Negeri Singajaya 01 Bogor Regency. Starting from students not getting innovative learning media, and still using conventional methods in the…
he learning process so that technology in learning is still very lacking. The purpose of this research is to develop powtoon-based animated video media in class V subtheme 3 humans and objects in their environment and determine the feasibility of powtoon-based animated video media with validation tests by material experts, media experts, and linguists, as well as student responses. The experimental subjects were fifth-grade elementary school students. The development of this video media uses the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The results of the validation test by material experts showed a percentage value of 88% in the very feasible category, media experts gave a percentage value of 100% in the very feasible category, and linguists gave a percentage value of 60% in the feasible category with revisions. The student response based on the questionnaire shows a positive response with a percentage score obtained of 91% in the category of very feasible, student response. The results can be concluded that the development of powtoon-based animated video media on subtheme 3 of humans and objects in their environment is suitable for use and motivates teachers and students in the learning process.
Abstract:Penelitian ini menganalisis karakteristik biogeofisik Daerah Aliran Sungai (DAS) Paguyaman untuk mendukung pengelolaan wilayah yang berkelanjutan melalui pendekatan berbasis data spasial dengan memanfaatkan Geographic Information…
formation System (GIS). Data yang digunakan mencakup survei lapangan, citra satelit, model elevasi digital (DEM) beresolusi 30 meter, serta data iklim dari stasiun meteorologi setempat. Hasil penelitian menunjukkan bahwa jenis tanah yang dominan adalah Latosol, yang mencakup 51,35% dari total luas wilayah, diikuti oleh Podsolik (21,57%) dan Aluvial (17,09%). Latosol yang subur memerlukan manajemen konservasi yang tepat untuk mencegah degradasi, sementara Podsolik yang bersifat asam memerlukan perlakuan khusus guna mendukung produktivitas pertanian. Tutupan lahan didominasi oleh hutan lahan kering sekunder, yang mencakup 36,43% dari total area, berperan penting dalam menjaga keseimbangan hidrologi dan mencegah erosi. Topografi DAS Paguyaman, yang didominasi oleh perbukitan (55,24%) dan pegunungan (26,67%), menunjukkan risiko tinggi terhadap erosi, sehingga diperlukan strategi konservasi seperti reboisasi dan teknik terasering. Penelitian ini menekankan pentingnya integrasi data biogeofisik dalam merumuskan strategi pengelolaan yang adaptif dan responsif terhadap perubahan iklim, serta mendukung kebutuhan masyarakat lokal. Temuan ini dapat menjadi referensi strategis bagi penelitian lanjutan dan pengembangan kebijakan pengelolaan DAS yang lebih efektif.