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Effects of Lumajang sand-bentonite mix on Al-Si casting mechanical properties Edi Widodo; Rendra Dani Firmansyah; Subroto; Iis Siti Aisyah
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 8 No. 2 (2023)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v8i2.29093

Abstract

The use of sand for metal molds is often found in various places; this research will focus on the type of sand used, namely sand from Lumajang Regency, which is known to be strong for concrete mixes or the like. So the purpose of this research is to find out how Lumajang sand molds will be used as metal casting molds. Testing will be carried out by making three variations of bentonite mixtures: 10%, 15%, and 20%. Later, after knowing the tensile and compressive strengths of each sand mold, casting will be carried out with three variations. For testing, casting objects will use the dye penetration test method. So that a description of the surface smoothness of the casting objects made from the three molds will be obtained and it will be known which variation is good to know about the sand mold and the appropriate metal casting results. From the results of the research conducted, it shows that the bentonite mixture with a percentage of 20% gets the highest compressive value with a value of 26.3 N/cm2 when compared to other bentonite mixture variations. From the tensile testing results, a high tensile strength value was obtained in the 15% bentonite mixture variation with a value of 0.7 N/cm2. While the results of the dye penetrant test were obtained, the results of the variation of the sand mold mixture with 20% bentonite into a mold produced the smoothest workpiece results with a few red spots caused during testing.
The effect of tapioca starch concentration on mechanical properties of Sansevieria Trifasciata fiber-reinforced composites Misbakh; Edi Widodo; Iis Siti Aisyah; Syahruddin; Nur Haizal Ariffin
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 9 No. 1 (2024)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v9i1.32657

Abstract

This research investigates the impact of varying concentrations of tapioca starch (Manihot esculenta) on the mechanical properties of composites reinforced with Sansevieria trifasciata (Lidah mertua) fibers. The composites were fabricated using the hand lay-up method with SHCP 2668 polyester resin, mekpo catalyst, and alkali-treated fibers (5% NaOH). The fiber weight fraction was 30%, and the catalyst weight was 10% of the total specimen mass. The tapioca starch concentrations were 0%, 10%, 20%, 30%, 40%, and 50%, with a total matrix mass of 50 grams. Mechanical properties were evaluated through tensile tests (ASTM-D3039) and bending tests (ASTM-D790). The results indicated that composites with added tapioca starch exhibited improved tensile strength and a higher modulus of elasticity. However, for bending tests, the composites without added tapioca starch demonstrated better performance, showing a higher elastic modulus and better flexibility. In conclusion, adding tapioca starch enhances the tensile strength of the composites, making them stronger. Conversely, for bending applications, composites without tapioca starch are preferable due to their superior elasticity and bending strength.
Penerapan Pola Hidup Sehat untuk Mewujudkan Sekolah Sehat di TK Aisyiyah 8 Musi Rawas Hastuti, Dwi Puji; Waluyo, Lud; Aisyah, Iis Siti
Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini Vol. 9 No. 5 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/obsesi.v9i5.7018

Abstract

Pentingnya menerapkan kebiasaan sehat pada anak usia dini dengan cara membawakan bekal kesekolah, tidak membawa uang saku, untuk dapat mewujudkan sekolah sehat yang dapat menjadi minat untuk sekolah di TK. Tujuan Penelitian ini adalah untuk mengetahui pemahaman warga sekolah di Pendidikan Anak Usia Dini, terhadap gaya hidup dan pola hidup sehat untuk anak-anak usia dini melalui pembiasaan membawakan bekal untuk anak ke sekolah dari  masakan ibu, dan tidak membawakan uang  saku ke sekolah dengan anak terkecuali uang untuk berinfak dan menabung di sekolah, untuk mengetahui hasil dari penerapan aturan pola hidup sehat pada anak usia dini untuk mewujudkan sekolah sehat di Pendidikan Anak Usia Dini. Dalam penelitian ini, pendekatan kualitatif menggunakan metode deskriptif, Subjek pada penelitian ini adalah  Kepala sekolah, Guru kelas, Orang tua siswa. Pengumpulan data peneliti menggunakan metode wawancara, observasi, dokumentasi, Sedangkan Uji keabsahan data dengan uji kredibilitas dengan teknik triangulasi, dan analisis data melalui display data, reduksi data, konklusi data. Hasil penelitian ditemukan bahwa anak-anak lebih konsentrasi dalam pembelajaran sehingga pendidik lebih mudah mengkondisikan anak dalam pembelajaran, orang tua tidak terbebani dalam uang saku.
Implementation of Inquiry Learning Model on Students' Civics Learning Outcomes of Grade V Elementary School Warye, Aulia; Waluyo, Lud; Aisyah, Iis Siti
Journal of Elementary Educational Research Vol 5 No 1 (2025): 2025 Volume 5 No 1
Publisher : Program Studi Pendidikan Guru Madrasah Ibtidaiyah Fakultas Tarbiyah dan Ilmu Keguruan IAIN Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30984/jeer.v5i1.1386

Abstract

This study examines the application of the inquiry learning model to the learning outcomes of Civic Education (PKn) of grade V students of SD Inpres I Tobelo, North Halmahera. This study was motivated by the low involvement and achievement of students in Civic Education learning. The inquiry learning model was applied to stimulate critical thinking, active participation, and student responsibility, which aims to improve their understanding of the concept of citizenship and foster democratic attitudes. This study used a qualitative descriptive approach, which included observation, interviews, and testing to assess the impact of the inquiry model. The findings showed a significant increase in student learning outcomes, with higher participation, better understanding of the concept of citizenship, and stronger critical thinking skills. This study contributes to educational practice by advocating inquiry-based learning as an effective strategy to engage students and improve educational outcomes, especially in remote areas such as North Halmahera.
THE IMPLEMENTATION OF SCHOOL PRINCIPALS’ LEADERSHIP IN ENHANCING TEACHER PERFORMANCE AND CAREER INTEREST IN ELEMENTARY SCHOOLS IN SUMBER HARTA DISTRICT, SOUTH SUMATRA Moh. Rofiq; Iis Siti Aisyah; Lud Waluyo
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 5 No. 3 (2025): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/morfai.v5i3.3058

Abstract

School principal leadership plays a critical role in improving the quality of education, particularly in supporting teacher performance and career development. However, challenges such as the aging of teachers nearing retirement, limited technological resources, and administrative burdens often hinder the effective implementation of leadership. This study aims to analyze the influence of school principal leadership on the performance and career interest of elementary school teachers in Sumber Harta District, South Sumatra. A qualitative research method with a case study approach was employed. Data were collected through interviews, observations, and document analysis involving school principals and teachers as informants. The data analysis process included data reduction, data presentation, and conclusion drawing. The findings indicate that principals provide support through supervision, training, informal motivation, and access to information related to teacher certification. A total of 80% of teachers reported that school leadership improved their performance, while 75% expressed similar sentiments regarding career development. Nevertheless, issues related to teacher age and the limitations of technological infrastructure remain significant obstacles.
IMPLEMENTATION OF THE RESTITUTION TRIANGLE METHOD IN REDUCING CHILD DELINQUENCY AT SDN 4 WONOSARI MUSI RAWAS SOUTH SUMATERA Rozikin; Lud Waluyo; Iis Siti Aisyah
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 5 No. 3 (2025): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/morfai.v5i3.3060

Abstract

This study aims to implement the Restitution Triangle method as an effective strategy in reducing juvenile delinquency in the school environment, especially at SDN 4 Wonosari, Musi Rawas, South Sumatra. The Restitution Triangle method is a restorative approach that involves collaboration between the school, parents, and children as the main actors in the process of recovery and prevention of delinquency. This study uses a descriptive quantitative approach with data collection techniques through observation, interviews, and questionnaires to students, teachers, and parents during the study period. In its application, this method focuses on open dialogue, moral responsibility, and a recovery process that involves all related parties to build children's awareness of the impact of their actions and repair damaged social relationships. The results of the study indicate that the implementation of the Restitution Triangle Method is significantly able to reduce the level of student delinquency, improve communication between schools and parents, and form more positive and responsible behavior among children. This implementation also shows an increase in students' moral awareness and empathy towards their families and the surrounding community. Based on these findings, it is suggested that this method can be routinely integrated into character education programs and child behavior management in elementary schools to create a healthy, safe, and understanding learning environment. This study contributes to the development of discipline strategies based on a restorative approach and is able to reduce child delinquency effectively.
ANALYSIS OF LOCAL WISDOM IN SCIENCE LEARNING: PEDAGOGICAL APPROACH AT SDN 64, AIR TEMAM VILLAGE, LUBUKLINGGAU SELATAN 1 DISTRICT, LUBUKLINGGAU CITY Onky Paramanda Arma; Iis Siti Aisyah; Lud Waluyo
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 5 No. 4 (2025): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/morfai.v5i4.3200

Abstract

This study aims to explore the integration of local wisdom in Natural Science (IPA) learning at SDN 64 Kelurahan Air Temam, Lubuklinggau. Using a qualitative approach and case study, this study involved fifth grade students as subjects to understand their perceptions of learning that integrates local wisdom. Data were collected through questionnaires, interviews, observations, and analysis of curriculum documents. The results showed that the integration of local wisdom not only increased students' interest and motivation, but also deepened their understanding of scientific concepts. This study is expected to contribute to the development of learning methods that are more relevant and responsive to local culture, as well as being the basis for educational policies that are more oriented towards local wisdom.
The PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS WEBSITE PADA EKSTRAKURIKULER TEKNOLOGI INFORMASI DAN KOMUNIKASI DI SMP MUHAMMADIYAH TANJUNG SELOR Aci, Sahid Setiawan; Aisyah, Iis Siti; Waluyo, Lud
Educational Technology Journal Vol 5 No 2 (2025): Vol. 5 No. 2 (2025): Volume 5 Nomor 2, Oktober 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aimed to develop a valid, practical, and effective website-based learning media to support Information and Communication Technology extracurricular activities at SMP Muhammadiyah Tanjung Selor. The study employed Research and Development methodology using the ADDIE model (Analyze, Design, Development, Implementation, Evaluation) with purposive sampling technique involving 25 students participating in ICT extracurricular activities. Data collection was conducted through questionnaires, observations, interviews, and literature studies, while data analysis utilized descriptive qualitative and statistical descriptive techniques. The research results demonstrated that the developed website-based learning media achieved material expert validation score of 77% (Good category) and media expert validation score of 80% (Very Good category), indicating valid criteria. Student responses during implementation showed positive feedback with average percentages of 92.7% for the first meeting, 81.6% for the second meeting, and 85.3% for the third meeting, all categorized as Very Good. Teacher responses reached 90% (Very Good category), confirming the media's practicality. Effectiveness was proven through significant improvement in pre-test and post-test results, showing enhanced student understanding of ICT concepts, hardware-software identification, word processing applications, and digital design using Canva.
Implementation of Papua Nature Exploration (PNE) in Scout Extracurricular Activities to Build Students’Responsible and Nature-Loving Character at Elementary School Didit Shela Nurfatul Daniar; Iis Siti Aisyah; Lud Waluyo
JIP Jurnal Ilmiah PGMI Vol 11 No 1 (2025): JIP (Jurnal Ilmiah PGMI)
Publisher : Program Studi Pendidikan Guru Madrasah Ibtidaiyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/jip.v11i1.28178

Abstract

Papua Nature Exploration (PNE) is an extracurricular Scout activity at Muhammadiyah Teminabuan Elementary School, South Sorong. This activity aims to shape students' character of responsibility and love for nature. This study aims to examine the implementation, supporting and inhibiting factors, and how to deal with obstacles in PNE activities. The study used a qualitative descriptive method with data collection techniques through observation, interviews, and documentation. The collected data were analyzed using qualitative analysis techniques, including data reduction, data display, and conclusion drawing. Data triangulation was applied to ensure validity by cross-checking information obtained from different sources. The results showed that Papua Nature Exploration (PNE) is a structured scouting extracurricular activity that fosters responsibility and love for nature through team formation, environmental education, outdoor survival training, exploration, conservation efforts, and interactive games. PNE activities were effective in building character of responsibility and love for nature in grades V and VI students. This is reflected in the attitude of caring, focusing, and protecting the environment during the activity. Supporting factors for the success of PNE include the involvement of Scout Leaders, Muhammadiyah Middle School students, PDM Sorong Selatan, and student enthusiasm. Obstacles found include the distance of the activity location which is far from the school and unpredictable weather. This study recommends the development of interesting activities to instill positive character in students. In addition, it is recommended to further develop PNE activities using experimental methods to test their effectiveness on a larger scale.
Analysis of Factors Causing Teachers to Be Reluctant to Become Principals in Elementary Schools Agus Setiawan; Lud Waluyo; Iis Siti Aisyah
Journal Evaluation in Education (JEE) Vol 6 No 3 (2025): July
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jee.v6i3.1808

Abstract

Purpose of the study: This study aims to identify and analyze the factors that cause teachers to be reluctant to accept the position of principal. Methodology: The study employed a descriptive qualitative approach with a case study design involving six teachers at an elementary school in Musi Rawas. Data were obtained through in-depth interviews, non-participant observations, and document analysis. Analysis followed the Miles and Huberman interactive model, encompassing data reduction, display, and conclusion drawing. Data validity was ensured through triangulation of sources. Main Findings: The results of the study show that internal factors such as low self-confidence, time constraints, and lack of managerial experience, as well as external factors such as administrative burden, low institutional support, and an organizational culture that is not yet conducive, are the main obstacles for teachers in accepting the position of principal. Teachers also revealed that lack of role models and unclear career progression pathways became psychological barriers that affected their leadership interest. Novelty/Originality of this study: This study contributes original insights by uncovering teacher decision-making patterns in declining principal positions within rural elementary schools. It also proposes strategic, context-specific interventions to enhance teachers’ leadership readiness and support their transition into school management roles.