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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro Rotasi REKA RACANA Novum : Jurnal Hukum E-SOSPOL Pedagogi : Jurnal Penelitian Pendidikan Profesi Pendidikan Dasar JURNAL KEPERAWATAN MERSI Journal of Civil Engineering Jurnal DIDIKA: Wahana Ilmiah Pendidikan Dasar Tadarus: Jurnal Pendidikan Islam DIDAKTIKA TAUHIDI: JURNAL PENDIDIKAN GURU SEKOLAH DASAR Ciencias : Jurnal Penelitian dan Pengembangan Pendidikan Ensiklopedia of Journal Jurnal Gentala Pendidikan Dasar Wahana Sekolah Dasar PrimaryEdu - Journal of Primary Education Jurnal Prakarsa Paedagogia SABILARRASYAD Jurnal Ilmiah Profesi Pendidikan JIIP (Jurnal Ilmiah Ilmu Pendidikan) Didaktik : Jurnal Ilmiah PGSD STKIP Subang Jurnal Pendidikan Dasar Perkhasa Construction and Material Journal APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE) jurnal dikdas bantara Renjana Pendidikan Dasar Pendagogia: Jurnal Pendidikan Dasar Ibtidai'y Datokarama: Jurnal Pendidikan Dasar Pendikdas: Jurnal Pendidikan Dasar caXra: Jurnal Pendidikan Sekolah Dasar Makara Journal of Technology Wicarana Jurnal Pendidikan Dasar Borneo (Judikdas Borneo) Jurnal Studi Keperawatan Jurnal Ilmia Widya Pustaka Pendidikan Jurnal Adijaya Multidisiplin Jurnal Sains Student Research Attadrib: Jurnal Pendidikan Guru Madrasah Ibtidaiyah Trends in Applied Sciences, Social Sciences, and Education Himpunan: Jurnal Ilmiah Mahasiswa Pendidikan Matematika TERAS: Jurnal Pengabdian Masyarakat Sosial Budaya Pena Anda PAEDAGOGIE EDUKASI : Jurnal Penelitian dan Artikel Pendidikan
Heru Purnomo
Universitas Indonesia
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KAJIAN KUAT TEKAN BETON RINGAN TIDAK TERKEKANG BERAGREGAT KASAR POLIPROPILENA DILAPISI PASIR Waoma, Adolf; Purnomo, Heru; Musalamah, Sittati
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7522

Abstract

This study aims to determine the compressive strength, density, and crack pattern of lightweight concrete utilizing polypropylene coated with sand as coarse aggregate and Tayan sand as fine aggregate. The research employs three mix design clusters based on the water-to-cement ratio (w/c): Cluster A with a w/c ratio of 0.347, Cluster B with a w/c ratio of 0.339, and Cluster C with a w/c ratio of 0.319. Cylinder-shaped specimens measuring 15×30 cm were prepared for each cluster. For the 15×30 cm cylinder specimens, the average compressive strength obtained was 21.69 MPa, 22.15 MPa, and 24.53 MPa for Clusters A, B, and C, respectively, with standard deviations of 0.59, 0.49, and 1.51. The density of lightweight concrete was recorded as 1717.54 kg/m³, 1689.17 kg/m³, and 1802.93 kg/m³ for Clusters A, B, and C, respectively. The observed crack pattern corresponds to Type 3, in reference to ASTM C39. Keywords: Lightweight Concrete; Polypropylene; Tayan
The Eksperimental Study of Cold Form Steel Closed Box Section 32 mm x 31 x 0,3 mm Under 3 Point Flexural Loading Test Utami, Ghina; Purnomo, Heru; Swastika, Tri Widya
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7542

Abstract

Cold-formed steel materials are widely used in the construction industry. One such application is closed box cold-formed steel beams, which are commonly used as battens in ceiling structures. Cold-formed steel is produced through cold roll forming or bending processes, resulting in folds along the profile. This study aims to investigate the effects of these folds on stiffness, deflection, ductility, and failure patterns. A total of 18 specimens, with lengths of 500 mm and 1100 mm, were tested using three-point bending tests. The folds were varied in location: placed in the top area, bottom area, and the side area. Tensile coupon tests were also testing to determine the material properties of the cold-formed steel. The results show that beams with a length of 500 mm can carry greater vertical loads compared to those with a length of 1100 mm. Additionally, the displacement and rotation observed in the 500 mm beams were smaller than those in the 1100 mm beams, which more significant deflection and rotation. Beams with folds located in the top area and bottom area shower greater load-carry capacity than those with folds in the web area. The failure patterns of the 500 mm beams were dominantly characterized by excessive deformation in the bottom are due to vertical loading. Similar deformation was observed in the 1100 mm beams. This excessive deformation occurred beneath the point of vertical load application with a roller-type support. Momen capacity of the experimental test results was also compared with the theoretical calculation using the Direct Strength Method, the results showed a comparative value that was almost close, but it is better to modify the formula to the theoretical formula of the Direct Strength Method for cross-sections with folds.
The EXPERIMENTAL STUDY OF COLD-FORMED STEEL CLOSED BOX SECTION 32 MM X 31 MM X 0,3 MM BEAM ON 4-POINT FLEXURAL LOADING Pregawati, Dyah Ayu; Purnomo, Heru
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7543

Abstract

This study evaluates the effect of beam length and fold position on the flexural performance, deflection, and failure pattern of closed-box cold-formed steel beams with dimensions of 32 mm × 31 mm × 0.3 mm under four-point bending tests. A total of 18 specimens were tested using this method with two length variations, 500 mm and 1100 mm, and fold positions located either on the top flange, bottom flange, or side web. The results show that the 500 mm beams were able to carry greater vertical loads compared to the 1100 mm beams, with smaller mid-span deflections and relatively smaller rotation. In contrast, the 1100 mm beams experienced more significant mid-span deflections and rotations. The presence of folds on the top or bottom flanges increased the beam’s vertical load-carrying capacity by approximately 10% to 15% compared to when the fold was placed on the side web. The failure pattern of the shorter beams was dominated by excessive deformation on the upper part of the beam due to vertical loading, and similar deformation was also observed in the longer beams. This excessive deformation occurred beneath the vertical load application point near the roller support. In addition, comparison with the Direct Strength Method (DSM) revealed that DSM predicted higher flexural moment capacities than those obtained from experiments, M experiment / MDSM ratios ranging from 0.33–0.45 for 500 mm spans and 0.49–0.54 for 1100 mm spans. These results indicate that DSM is more conservative for shorter beams and can serve as a safe preliminary approach for designing cold-formed steel beams subjected to four-point bending.
Potensi Implementasi Pendekatan Deep Learning dalam Pembelajaran Numerasi di Kelas 4 Sekolah Dasar Nurahmadani, Anisa; Purnomo, Heru
Pendagogia: Jurnal Pendidikan Dasar Vol 5 No 2a: Oktober 2025
Publisher : Educational Consultant & Counseling Career (EC3) Mataram

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

Abstract

Numeracy skills are an important component of mathematical literacy that need to be instilled from an early age so that students are able to face real-life problems logically and systematically. However, the reality on the ground shows that numeracy learning at the elementary school level still faces various obstacles, particularly in terms of learning approaches that do not fully encourage active involvement and in-depth student understanding. This study aims to describe the real conditions of numeracy learning implementation in fourth grade elementary schools based on observations and interviews, and explore the possibility of implementing a deep learning approach as an innovative strategy that is adaptive to the learning needs of 21st-century students. The study was conducted using a descriptive qualitative approach, through observations of numeracy learning and semi-structured interviews with class teachers. The results of the study indicate that conventional approaches are still dominant, with low student engagement and limited understanding of numeracy concepts, especially in fractions. Nevertheless, there are positive indications that the use of visual media and contextual activities can increase student enthusiasm and participation. These findings indicate that the deep learning approach has the potential to be integrated into numeracy learning, provided it is supported by increased teacher capacity and the provision of adequate digital learning infrastructure.
Analisis Implementasi Pembelajaran Deep Learning pada Kemampuan Berpikir Kritis Siswa Sekolah Dasar Ramadhan, Diky; Purnomo, Heru
Pendagogia: Jurnal Pendidikan Dasar Vol 5 No 2a: Oktober 2025
Publisher : Educational Consultant & Counseling Career (EC3) Mataram

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

Abstract

Education holds a significant role in shaping human resources that are not only of high quality but also capable of competing globally. It is not limited to the transfer of knowledge; education also fosters moral values, character development, and critical thinking skills, which are essential in navigating the complexities of the modern world. However, learning at the elementary level still encounters several challenges, particularly in developing students’ critical thinking abilities. Many students face difficulties in identifying problems, constructing logical reasoning, making conclusions, and actively participating in discussions or solving problems. To overcome these obstacles, the deep learning approach has been introduced as a relevant solution. This method focuses on building meaningful understanding by connecting learning content with real-life contexts, while encouraging reflective and analytical thinking. This study aims to describe the implementation of deep learning in Science and Social Studies (IPAS) learning for fifth-grade students at SD Negeri Gedongkuning. A qualitative descriptive method was used, with data collected through observation, interviews, and documentation. The results show that students became more active and demonstrated better critical thinking skills. Nevertheless, several barriers remain, such as limited instructional time, inadequate facilities, and teacher readiness. Therefore, strong policy support, regular teacher training, and parental involvement are crucial for successful implementation.
Desain Instrumen Diagnostik Berbasis Two-Tier untuk Mendeteksi Miskonsepsi Materi Wujud Zat Siswa SD Muhammadiyah Ambarbinangun Nikadinata, Vivian; Purnomo, Heru
Pendagogia: Jurnal Pendidikan Dasar Vol 5 No 2a: Oktober 2025
Publisher : Educational Consultant & Counseling Career (EC3) Mataram

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Abstract

Penelitian ini bertujuan untuk mengembangkan instrumen tes diagnostik two-tier yang dapat digunakan untuk mendeteksi miskonsepsi siswa kelas IV SD pada materi wujud zat. Instrumen ini dirancang untuk menggali tidak hanya jawaban siswa, tetapi juga alasan yang mendasari pilihan jawaban tersebut, sehingga mampu mengidentifikasi miskonsepsi secara lebih mendalam. Pendekatan yang digunakan dalam penelitian ini adalah kualitatif deskriptif, dengan tahapan meliputi identifikasi konsep, penyusunan soal, validasi oleh ahli, dan uji coba terbatas pada siswa. Validasi dilakukan oleh ahli materi dan ahli pendidikan untuk menilai kelayakan soal dari segi isi, bahasa, dan kemampuan mendeteksi miskonsepsi. Hasil uji coba menunjukkan bahwa instrumen yang dikembangkan efektif dalam mengungkap berbagai bentuk miskonsepsi siswa, seperti kesalahpahaman mengenai perubahan wujud zat dan faktor-faktor yang memengaruhinya. Instrumen ini diharapkan dapat digunakan oleh guru sebagai alat evaluasi diagnostik dalam proses pembelajaran IPA di sekolah dasar.
Identifikasi Miskonsepsi Siswa SD Negeri Panggang Menggunakan Tes Diagnostik Two-Tier Pada Materi Wujud Zat Dan Perubahannya Qatrunnada, Assita Azka; Purnomo, Heru; Kurniawati, Wahyu
Pendagogia: Jurnal Pendidikan Dasar Vol 5 No 2a: Oktober 2025
Publisher : Educational Consultant & Counseling Career (EC3) Mataram

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Abstract

At the elementary school level, education has a very important role in shaping the way students think and providing a strong foundation for understanding various basic concepts in science. However, in reality there are still many students who experience misconceptions. This study aims to identify students' misconceptions through a two-tier diagnostic test. The diagnostic test consisted of 25 multiple choice items covering three subconcepts and was tested on 51 fourth grade students. The research method used is descriptive qualitative method because this research only focuses on one variable, namely student misconceptions that occur in learning the topic of the form of substances and their changes. The test results show that students' misconceptions are quite high, namely 61.43% with the highest misconception topic on the types of substances, which is 70%. Based on these results, it can be concluded that diagnostic tests need to be carried out in learning to be able to reveal students' misconceptions before learning.
MANAJEMEN MUTU AKADEMIK SD NEGERI WONOYOSO Purnomo, Heru; Murniati, Ngurah Ayu Nyoman; Miyono, Noor
Journal Prakarsa Paedagogia Vol. 5 No. 1 (2022): Juni 2022
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/jpp.v5i1.7996

Abstract

The academic quality achieved by SD Negeri Wonoyoso is very proud because of the well-organized management from planning, organizing, implementing to supervising. This study uses a qualitative approach. The research was conducted at SDN Wonoyoso. Data collection techniques were carried out through interviews, observation and documentation studies. Data analysis procedure with data reduction, data presentation and data verification. While the research subjects were principals, heads of foundations, teachers, committees and school supervisors. The results showed that: 1) the implementation of academic quality management at SD Negeri Wonoyoso was carried out in a structured manner starting from planning, organizing, implementing and supervising by involving the active roles of principals, teachers, committees, heads of foundations, supervisors and parents of students. . 2) in the functions and responsibilities of academic quality in schools placing personal according to their respective competencies. 3) the obstacles experienced include the urgent need to improve coordination of each field, high loyalty, completeness of administration and infrastructure. Academic quality management is needed in changing educational organizations. This is important for organizational innovation and adaptation to management practices. Academic quality management will be realistic when placing the quality of educational services and the quality of graduates in accordance with the needs of the community
Co-Authors Abidin, Nurul Adhela Septiria Wardani Afiqoh Agustin Agus Pamuji Ajeng Titah Normawati Anggraeni, Levina Anisa Nur Rahma Anjarwati, Nely Anjelin, Anggela Ermitha Arel Sabila, Thifan Ariffia, Citrani Natha Arini, Srikandi Wahyu Ariyani, Silvia Aulia Wijayanti, Luluk Dina Azzahra, Melia Ceda, Katarina Aprillia darwan darwan, darwan Devi Anggraini Dewanti, Luthfia Nilam Dewi, Melani Dhiniaty Gularso Dian Fitriyani Dian Puspita Djoeli Satridjo Dorce Sisfiani Sarimin Elly Tjahjono, Elly Epi Saptaningrum Faizatul Muna, Faizatul Muna Farhatuaini, Lia Fatah Zahrasiwi, Reiki Findy Yonanta, Apriliya Fitriya, Fathul Laila Galih Dani Septiyan Rahayu Hadi Suyono Henki W Ashadi Imam Jauhari Maknun, Imam Jauhari Irwan Katili, Irwan Istiqomah Kartadarma, Supriyatni KATNI KATNI, KATNI Komalasari, Mahilda Dea Lukitoaji, Beny Dwi Melinda, Tika Morin Prita Laura Mu'awanah, Mu'awanah Muawanah Muawanah Mudhofar, Mohammad Nur Muhamad Nor Mudhofar Muhammad Amien, Muhammad Amien Muhammad Ridho Mumtaza, Nadhila Dzikrina Munawaroh, Raden Roro Zakiyah Murdono, Feryandy Musalamah, Sittati Natasah, Sintia Ngurah Ayu Nyoman Murniati Nikadinata, Vivian Noor Miyono Nugraha, Febby Fajar Nur Khasanah, Fitria Nurahmadani, Anisa Nurizka, Rian Nurul Bahiyah Olanda, Viona Perwitasari, Ningrum Pradita, Erni Praganif Sukarno Pregawati, Dyah Ayu Primastuti, Kurnia Pawestri Purnomo, Sidiq Qatrunnada, Assita Azka Rahma, Fitri Nur Ramadhan, Diky Ramadhani, Dina Suci Ramdhani, Fitri Galuh Ratna Widyawati Rigianti, Henry Aditia Rini Nur Hasanah Rusita Purnamasari Safira, Utin Trisna Saluky Selly Distian Cahya Siti Utami Dewi, Siti Utami Sitirahayu, Sitirahayu Soekarno, Praganif Suhardono Suhardono Sumartono, Ignatius Harry Suradi Efendi Susilo Wirawan Tri Widya Swastika, Tri Widya Triana Rahmawati Triyono, Agung Utami, Ghina Vidliana, Tantri Wahyu Kurniawati Waoma, Adolf Wati, Ririn Asma Widyastuti, Ani widya_ningrum, wiyanda Wijayanti, Luluk Dina Aulia Yasminda, Fitria Ika Ari Yudhistari, Elsa Yuni Astriani Zela Septikasari, Zela