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All Journal Teknika: Jurnal Sains dan Teknologi Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Jurnal Biodjati Jurnal Pengabdian Masyarakat Teknik Motor Bakar : Jurnal Teknik Mesin Jurnal Statistika dan Matematika (Statmat) REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Asimetris: Pendidikan Matematika dan Sains Civil Engineering For Community Development Jurnal Marine Inside Innovative: Journal Of Social Science Research Journal of Community Service in Science and Engineering Proceedings Series of Educational Studies Media Pendidikan Matematika Journal Marine Services
Shulhany M, Ahmad
Politeknik Pelayaran Banten
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Evaluasi prosedur pengikatan muatan kendaraan terhadap keselamatan operasional kapal ro-ro (Studi kasus KM. Mila Utama) Renta Novaliana Siahaan; Sandy Wahyu Purnomo; Antaris Fahrisani; Ahmad Shulhany; Rizky Maulidina
Journal Marine Inside Vol. 7 No. 2 (2025)
Publisher : Politeknik Pelayaran Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62391/ejmi.v7i2.146

Abstract

Kapal Ro-Ro memiliki tingkat risiko keselamatan operasional yang relatif tinggi, khususnya terkait dengan pengikatan muatan kendaraan selama pelayaran. Pengikatan muatan yang tidak sesuai prosedur berpotensi menyebabkan pergeseran muatan, gangguan stabilitas kapal, hingga kecelakaan pelayaran. Penelitian ini bertujuan untuk mengevaluasi prosedur pengikatan muatan kendaraan terhadap keselamatan operasional kapal Ro-Ro pada KM. Mila Utama. Metode penelitian yang digunakan adalah pendekatan deskriptif kualitatif melalui observasi langsung di atas kapal, wawancara dengan Mualim I dan Kelasi, serta studi dokumentasi. Evaluasi dilakukan dengan membandingkan praktik pengikatan muatan di lapangan dengan standar keselamatan yang ditetapkan oleh International Maritime Organization (IMO) dan ketentuan International Convention for the Safety of Life at Sea (SOLAS). Hasil penelitian menunjukkan bahwa secara umum prosedur pengikatan muatan kendaraan telah diterapkan, namun masih ditemukan beberapa ketidaksesuaian, antara lain jarak penempatan kendaraan yang terlalu rapat, kondisi peralatan lashing yang aus, serta sudut dan ketegangan tali pengikat yang belum memenuhi ketentuan standar. Ketidaksesuaian tersebut berpotensi meningkatkan risiko pergeseran muatan dan menurunkan tingkat keselamatan operasional kapal, terutama pada kondisi cuaca buruk. Penelitian ini menegaskan pentingnya evaluasi berkala terhadap prosedur pengikatan muatan, peningkatan kompetensi awak kapal, serta pemeliharaan peralatan lashing guna mendukung keselamatan pelayaran kapal Ro-Ro secara berkelanjutan. Ro-Ro ships are associated with relatively high operational safety risks, particularly related to vehicle cargo securing during voyages. Improper cargo securing procedures may lead to cargo shifting, reduced ship stability, and serious maritime accidents. This study aims to evaluate vehicle cargo securing procedures in relation to operational safety on board the Ro-Ro vessel KM. Mila Utama. A descriptive qualitative approach was employed, utilizing direct onboard observations, interviews with the First Officer and deck crew, and documentation analysis. The evaluation was conducted by comparing actual cargo securing practices with safety standards established by the International Maritime Organization (IMO) and the International Convention for the Safety of Life at Sea (SOLAS). The results indicate that although cargo securing procedures have generally been implemented, several non-compliances remain, including insufficient spacing between vehicles, worn lashing equipment, and improper lashing angles and tension that do not fully meet prescribed standards. These deficiencies may increase the risk of cargo movement and compromise operational safety, particularly under adverse weather conditions. The study highlights the necessity of regular evaluation of cargo securing procedures, continuous crew training, and proper maintenance of lashing equipment to enhance the operational safety of Ro-Ro vessels.
The Impact of Cargo Volume and Ship Type on Maritime Service Efficiency: A Case Study of Indonesia Achmad Bashori; Ni Kadek Selvi Pricilia; Laila Puspitasari Anggraini; Siwi Woro Herningsih; Ahmad Munawir; Ahmad Shulhany
Journal Marine Inside Vol. 7 No. 2 (2025)
Publisher : Politeknik Pelayaran Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62391/ejmi.v7i2.154

Abstract

Port service efficiency plays a crucial role in supporting maritime logistics and national trade performance. One key indicator of port service efficiency is ship turnaround time, which is influenced by various operational factors, including ship type and cargo volume. This study examines the effect of ship type and cargo volume on ship turnaround time at Tanjung Priok Port, Indonesia, using a case study of PT Buana Lintas Lautan Tbk. Quantitative analysis was conducted using monthly operational data collected over a twelve-month period (August 2022–August 2023). Multiple linear regression was applied after fulfilling classical assumption tests, including normality, multicollinearity, heteroscedasticity, and autocorrelation. The results indicate that ship type and cargo volume simultaneously have a significant effect on turnaround time. However, partial analysis reveals that only cargo volume has a significant positive impact on turnaround time, while ship type does not show a statistically significant effect. These findings suggest that operational delays are primarily driven by cargo handling intensity rather than vessel characteristics. This study provides practical insights for ship agency companies and port operators in estimating service time, optimizing operational planning, and improving port service efficiency through better cargo management strategies. Efisiensi pelayanan pelabuhan merupakan faktor penting dalam mendukung kelancaran logistik maritim dan kinerja perdagangan nasional. Salah satu indikator utama efisiensi pelayanan pelabuhan adalah ship turnaround time, yang dipengaruhi oleh berbagai faktor operasional, termasuk jenis kapal dan volume muatan. Penelitian ini bertujuan untuk menganalisis pengaruh jenis kapal dan volume muatan terhadap ship turnaround time di Pelabuhan Tanjung Priok, Indonesia, dengan studi kasus pada PT Buana Lintas Lautan Tbk. Penelitian ini menggunakan pendekatan kuantitatif dengan data operasional bulanan selama periode Agustus 2022 hingga Agustus 2023. Analisis data dilakukan menggunakan regresi linear berganda yang didahului dengan pengujian asumsi klasik, meliputi uji normalitas, multikolinearitas, heteroskedastisitas, dan autokorelasi. Hasil penelitian menunjukkan bahwa jenis kapal dan volume muatan secara simultan berpengaruh signifikan terhadap ship turnaround time. Namun, secara parsial hanya volume muatan yang berpengaruh positif dan signifikan terhadap ship turnaround time, sedangkan jenis kapal tidak menunjukkan pengaruh yang signifikan. Temuan ini mengindikasikan bahwa lamanya waktu pelayanan kapal lebih dipengaruhi oleh intensitas penanganan muatan dibandingkan karakteristik jenis kapal. Hasil penelitian ini diharapkan dapat menjadi acuan bagi perusahaan keagenan kapal dan pengelola pelabuhan dalam memperkirakan waktu pelayanan kapal, meningkatkan perencanaan operasional, serta mengoptimalkan efisiensi pelayanan pelabuhan.
ANALISIS IMPLEMENTASI PENGAWASAN KINERJA OPERASIONAL PELABUHAN OLEH KANTOR KESYAHBANDARAN DAN OTORITAS PELABUHAN KELAS I BANTEN Asnawi; Arief Hidayat Tumanggor; Djibril Tri Bayu Pamungkas; Ahmad Shulhany; Chairiyah Chair
Journal Marine Inside Vol 8 No 1 (2026)
Publisher : Politeknik Pelayaran Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62391/ejmi.v8i1.187

Abstract

Pelabuhan Ciwandan, Banten, merupakan simpul transportasi strategis yang dikelola oleh PT Pelindo, dengan fungsi pengawasan operasional yang berada di bawah tanggung jawab Kantor Kesyahbandaran dan Otoritas Pelabuhan (KSOP) Kelas I Banten. Sinergi antara regulator (KSOP) dan operator (Pelindo) sangat krusial untuk menjamin kinerja pelabuhan yang efisien dan berdaya saing global. Namun, dalam praktiknya masih terdapat kendala seperti keterbatasan sumber daya manusia pengawas, integrasi sistem Inaportnet yang belum optimal, serta tantangan koordinasi. Penelitian ini bertujuan untuk menganalisis implementasi pengawasan (administratif, teknis, dan keselamatan) oleh KSOP, mengidentifikasi hambatan yang ada, serta merumuskan strategi peningkatan efektivitas pengawasan terhadap kinerja operasional pelabuhan. Metode yang digunakan adalah pendekatan mixed method (kualitatif dan kuantitatif) dengan melibatkan responden dari pihak KSOP, PT Pelindo, dan stakeholder terkait. Data dianalisis menggunakan statistik deskriptif dan regresi linear berganda melalui perangkat lunak SPSS terhadap 30 sampel responden. Hasil penelitian menunjukkan bahwa variabel pengawasan administratif, teknis, dan keselamatan secara simultan berpengaruh signifikan terhadap kinerja operasional ($F=42,518$; $Sig=0,000$). Koefisien determinasi ($R^2$) sebesar 0,709 mengindikasikan bahwa 70,9% variasi kinerja dipengaruhi oleh ketiga variabel pengawasan tersebut. Faktor pengawasan keselamatan dan keamanan terbukti menjadi variabel paling dominan dengan koefisien regresi tertinggi ($B=0,402$) dan korelasi terkuat ($r=0,741$). Selain itu, rata-rata Berth Occupancy Ratio (BOR) sebesar 30,34% menunjukkan kategori "Baik" (di bawah standar UNCTAD <70%), yang mengindikasikan bahwa kapasitas dermaga masih tersedia secara luas untuk peningkatan kunjungan kapal.   Ciwandan Port, Banten, is a strategic transportation hub managed by PT Pelindo, with operational supervision under the authority of the Harbor Master and Port Authority Office (KSOP) Class I Banten. Synergy between the regulator (KSOP) and the operator (Pelindo) is crucial to ensure efficient and globally competitive port performance. However, practical challenges remain, such as limited supervisory human resources, suboptimal integration of the Inaportnet system, and coordination issues. This study aims to analyze the implementation of supervision (administrative, technical, and safety) by KSOP, identify existing obstacles, and formulate strategies to improve the effectiveness of supervision on port operational performance. A mixed-method approach (qualitative and quantitative) was employed, involving respondents from KSOP, PT Pelindo, and relevant stakeholders. Data were analyzed using descriptive statistics and multiple linear regression via SPSS with a sample of 30 respondents. The results show that administrative, technical, and safety supervision variables simultaneously have a significant effect on operational performance ($F=42.518$; $Sig=0.000$). The coefficient of determination ($R^2$) of 0.709 indicates that 70.9% of performance variation is explained by these three supervisory variables. Safety and security supervision is proven to be the most dominant factor, with the highest regression coefficient ($B=0.402$) and the strongest correlation ($r=0.741$). Furthermore, the average Berth Occupancy Ratio (BOR) of 30.34% falls into the "Good" category (below the UNCTAD standard of <70%), indicating that there is still significant idle capacity for increased vessel traffic.
STUDI KASUS KETERLAMBATAN BONGKAR MUAT DI PELABUHAN DAN DAMPAKNYA TERHADAP LOGISTIK DI PT. KRAKATAU BANDAR SAMUDRA BANTEN Arief Hidayat Tumanggor; Asnawi; Djibril Tri Bayu Pamungkas; Budi Purnomo; Ahmad Shulhany; Yudha Prawira; Eka Sutrisno
Journal Marine Inside Vol 8 No 1 (2026)
Publisher : Politeknik Pelayaran Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62391/ejmi.v8i1.188

Abstract

Kegiatan bongkar muat di pelabuhan merupakan salah satu mata rantai krusial dalam sistem logistik nasional. Efisiensi proses ini sangat menentukan kelancaran arus barang, efektivitas biaya operasional, serta keandalan rantai pasok industri. Namun, keterlambatan bongkar muat masih sering terjadi dan berpotensi meningkatkan biaya logistik, mengganggu operasional industri, hingga menurunkan daya saing perusahaan. Penelitian ini bertujuan untuk menganalisis faktor-faktor penyebab keterlambatan bongkar muat serta dampaknya terhadap sistem logistik di PT Krakatau Bandar Samudra (KBS) Banten. Pendekatan yang digunakan adalah deskriptif dengan metode studi kasus, didukung oleh data primer yang diperoleh melalui observasi, wawancara, dan kuesioner terhadap 75 responden. Analisis data kuantitatif dilakukan menggunakan perangkat lunak SPSS melalui uji validitas, reliabilitas, normalitas, korelasi Pearson, serta regresi linear berganda. Hasil penelitian menunjukkan bahwa faktor teknis, sumber daya manusia (SDM), administratif, dan cuaca berpengaruh signifikan terhadap keterlambatan bongkar muat. Faktor teknis menjadi variabel paling dominan (Beta=0,402; Sig=0,000), diikuti oleh faktor SDM, administratif, dan cuaca. Secara simultan, seluruh variabel memberikan pengaruh signifikan (Sig=0,000) dengan nilai koefisien determinasi (R^2) sebesar 0,490. Keterlambatan bongkar muat terbukti berdampak langsung terhadap logistik, yaitu menyebabkan kongesti pelabuhan, peningkatan biaya demurrage dan storage, serta terganggunya jadwal distribusi industri. Penelitian ini merekomendasikan peningkatan keandalan peralatan melalui preventive maintenance, penguatan kompetensi SDM, digitalisasi administrasi pelayanan kapal, serta penguatan sistem mitigasi cuaca guna meningkatkan efisiensi operasional dan kinerja rantai pasok di PT Krakatau Bandar Samudra Banten.   Loading and unloading activities at ports are a critical link in the national logistics system. The efficiency of these processes significantly determines the flow of goods, operational cost-effectiveness, and industrial supply chain reliability. However, loading and unloading delays still occur, potentially increasing logistics costs, disrupting industrial operations, and reducing company competitiveness. This study aims to analyze the factors causing these delays and their impact on the logistics system at PT Krakatau Bandar Samudra (KBS), Banten. A descriptive approach with a case study method was employed, supported by primary data gathered through observation, interviews, and questionnaires from 75 respondents. Quantitative data were analyzed using SPSS through validity, reliability, normality, Pearson correlation, and multiple linear regression tests. The results indicate that technical factors, human resources (HR), administrative, and weather factors significantly affect loading and unloading delays. Technical factors are the most dominant (Beta=0.402; Sig=0.000), followed by HR, administrative, and weather factors. Simultaneously, all factors have a significant effect (Sig=0.000) with an R^2 value of 0.490. These delays are proven to have a direct negative impact on logistics, causing port congestion, increased demurrage and storage costs, and disruptions to industrial distribution schedules. This study recommends improving equipment reliability through preventive maintenance, strengthening HR competencies, digitalizing vessel service administration, and enhancing weather mitigation systems to improve operational efficiency and supply chain performance at PT Krakatau Bandar Samudra Banten.
USULAN IMPLEMENTASI ISPS CODE PADA SEKOLAH KEDINASAN MATRA LAUT DIBAWAH KENDALI KEMENTERIAN PERHUBUNGAN Hendi Prasetyo; Ahmad Shulhany
Journal Marine Inside Vol 8 No 1 (2026)
Publisher : Politeknik Pelayaran Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62391/ejmi.v8i1.218

Abstract

Pembelajaran keamanan maritim di banyak institusi pendidikan saat ini masih didominasi oleh pendekatan teoritis, yang memunculkan kesenjangan terhadap kesiapan operasional taruna di lapangan. Di sisi lain, standar dari International Maritime Organization (IMO) melalui ISPS Code mensyaratkan adanya pembiasaan dan penerapan sistem keamanan secara langsung, konsisten, dan terukur. Artikel ini mengusulkan model implementasi ISPS Code yang adaptif melalui integrasi praktik keamanan operasional ke dalam kehidupan sehari-hari di lingkungan Sekolah Kedinasan Matra Laut di bawah Kementerian Perhubungan. Pendekatan komprehensif ini mencakup pelaksanaan table top exercise secara rutin, pengendalian akses personel dan kendaraan yang ketat melalui penggunaan ID card dan seragam, pengawasan CCTV terpusat selama 24 jam, dan penyesuaian penghalang fisik (barrier). Selain itu, sistem ini menerapkan tiga tingkatan keamanan (Security Level 1, 2, dan 3) yang terintegrasi dengan audit eksternal tahunan serta koordinasi dengan unsur pertahanan eksternal setempat. Implementasi yang dilakukan secara bertahap ini ditargetkan mampu menciptakan ekosistem kampus yang berfungsi sebagai simulasi keamanan yang nyata. Pada akhirnya, pendekatan ini diharapkan dapat menanamkan budaya kesadaran keamanan (security awareness culture) yang kuat, sehingga para lulusan tidak hanya menguasai regulasi secara teori, tetapi juga sigap menerapkan standar keamanan internasional dalam penugasan sesungguhnya.   Current maritime security education in many institutions remains predominantly theoretical, creating a gap in the actual operational readiness of cadets in the field. Conversely, the International Maritime Organization (IMO) standards, through the ISPS Code, mandate the direct, consistent, and measurable application and habituation of security systems. This article proposes an adaptive ISPS Code implementation model by integrating operational security practices into the daily lives of cadets at Naval Service Academies under the Ministry of Transportation. This comprehensive approach includes conducting routine table top exercises, strict personnel and vehicle access control using ID cards and uniforms, 24-hour centralized CCTV surveillance, and the adjustment of physical security barriers. Furthermore, the system establishes three security levels (Security Level 1, 2, and 3) integrated with annual external audits and coordination with local external defense units. This phased implementation aims to create a campus ecosystem that functions as a realistic security simulation. Ultimately, this approach is expected to instill a robust security awareness culture, ensuring that graduates not only master the regulations theoretically but are also fully prepared to apply international security standards in real-world assignments.
Metallothionein Protein Modeling from Pseudomonas aeruginosa PAO1 as A Metal Biosorber Candidate Fajri Ikhsan; Ahmad Shulhany; Syarif Abdullah
Jurnal Biodjati Vol 8 No 2 (2023): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v8i2.29170

Abstract

Metallothionein is a protein that is well known to play a role in metal metabolism in bacterial cells. Metallothionein is a multifunctional protein that has the potential to be used as a metal adsorbing agent. Pseudomonas aeruginosa is a ubiquitous gram-negative and rapid-growth bacterium. In addition, the complete genome of Pseudomonas aeruginosa has been largely known. Pseudomonas aeruginosa PAO1 is a strain of Pseudomonas aeruginosa that the complete genome of this strain is easily accessible in NCBI. These features make Pseudomonas aeruginosa PAO1 become a common model in bacterial studies. This research aimed to find and model the putative metallothionein of Pseudomonas aeruginosa PAO1. This research was carried out by bioinformatic and protein homology methods. Based on the results, the putative metallothionein of Pseudomonas aeruginosa PAO1 was found in the bacterial genome at base sequence of 2355918 to 2356157. The putative metallothionein-encoding gene of Pseudomonas aeruginosa PAO1 has a size of 240 bp. The translation result of the gene showed that the putative metallothionein of Pseudomonas aeruginosa PAO1 has 79 amino acids. The modeling result showed the 3D structure of the putative metallothionein of Pseudomonas aeruginosa PAO1 is similar to the metallothionein 3D structure of Pseudomonas fluorescens Q2-87. The 3D structure of the putative metallothionein of Pseudomonas aeruginosa PAO1 was dominated by turn and coil, but contained 1 α-helix structure and 2 β-sheet structures. Based on protein analysis, it was found that the putative metallothionein of Pseudomonas aeruginosa PAO1 has 1 metal-binding cluster with 10 amino acids and the most important amino acid residue is Cysteine . Even though, there was 1 Histidine amino acid residue on the metal-binding cluster.
Penanaman mangrove untuk menumbuhkan perekonomian hijau dan berkelanjutan di Desa Wisata Ketapang Semuel Palembangan; Soleh Uddin; Riyanto; Abdul Rochman; Dapid Rikardo; Hendi Prasetyo; Henni Sutryani; Susiarni Magdalena; Mokhammad Zulkarnain; Vidiana Anggeranika; Sandy Wahyu Purnomo; Ahmad Shulhany
Journal Marine Services Vol. 2 No. 1 (2026)
Publisher : Politeknik Pelayaran Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62391/jms.v2i1.249

Abstract

Kegiatan pengabdian kepada masyarakat ini dilaksanakan bertepatan dengan peringatan Dies Natalis ke-20 Politeknik Pelayaran Banten dengan fokus utama pada pelestarian ekosistem pesisir dan pemberdayaan ekonomi masyarakat di Desa Wisata Ketapang, Mauk, Kabupaten Tangerang. Hutan mangrove memiliki peran krusial sebagai penyerap karbon yang efisien dalam mitigasi perubahan iklim global, namun masyarakat setempat masih memiliki keterbatasan pengetahuan mengenai manfaat ekonomi dan pangan dari tanaman ini. Tujuan dari program ini adalah untuk mewujudkan Desa Ketapang sebagai destinasi wisata yang hijau dan berkelanjutan sekaligus menumbuhkan roda perekonomian melalui budidaya mangrove. Metode yang diterapkan meliputi penyuluhan mengenai manfaat mangrove untuk ketahanan pangan serta praktik langsung penanaman 1.000 bibit mangrove oleh tim pengabdi bersama masyarakat sekitar. Hasil kegiatan menunjukkan adanya peningkatan kesadaran masyarakat akan pentingnya menjaga ekosistem pesisir dari abrasi serta terbukanya peluang pemanfaatan hasil hutan mangrove sebagai sumber pendapatan tambahan. Melalui sinergi antara akademisi dan komunitas lokal, diharapkan program ini menjadi langkah awal yang berkelanjutan dalam menciptakan keseimbangan antara konservasi lingkungan dan kesejahteraan ekonomi.   This community service activity was carried out in conjunction with the 20th Anniversary (Dies Natalis) of the Banten Marine Polytechnic, focusing on the preservation of coastal ecosystems and the economic empowerment of the community in Ketapang Tourism Village, Mauk, Tangerang Regency. Mangrove forests play a crucial role as efficient carbon sinks in mitigating global climate change, yet the local community still has limited knowledge regarding the economic and food benefits of these plants. The aim of this program is to transform Ketapang Village into a green and sustainable tourism destination while simultaneously stimulating the local economy through mangrove cultivation. The methods applied included counseling on the benefits of mangroves for food security as well as the direct practice of planting 1,000 mangrove seedlings by the service team together with the surrounding community. The results of the activity showed an increase in community awareness regarding the importance of protecting coastal ecosystems from abrasion and the emergence of opportunities to utilize mangrove forest products as a source of additional income. Through synergy between academics and the local community, it is hoped that this program will be a sustainable first step in creating a balance between environmental conservation and economic welfare.
Developing Polyhedral Geometry Assessment Based on Polya’s Problem-Solving Stages Ruth Helen Simarmata; Esterlina Esterlina; Ahmad Shulhany
Proceedings Series of Educational Studies 2026: International Conference of Research Innovation and Technology on Elementary Education (ICRITE
Publisher : Universitas Negeri Malang

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

Abstract

Students experience difficulties in solving non-routine problems, particularly when interpreting information, connecting spatial elements, selecting strategies, carrying out procedures, and evaluating their answers. This condition indicates the need for a summative assessment that measures not only final outcomes but reveals students’ problem-solving processes. This study aimed to develop a valid and practical summative assessment based on Polya’s problem-solving stages and to describe its potential to elicit students’ mathematical problem-solving processes. The study employed development research using Tessmer’s formative evaluation procedure, which included preliminary analysis, self-evaluation, expert review, one-to-one evaluation, small- group evaluation, and field testing. The participants were eighth-grade students from a junior high school in Palembang who had studied polyhedral geometry. Data were collected through validation sheets, students’ written responses, response questionnaires, and interviews. The data were analyzed descriptively to determine content, construct, and language validity, assess practicality, and identify students’ problem-solving stages. The expert review results showed that the developed assessment met the validity criteria after revisions were made to its content, construct, and language aspects. The small-group evaluation yielded a practicality score of 85%, categorized as highly practical. Written responses and interviews showed that the assessment was able to elicit the stages of understanding the problem, devising a plan, carrying out the plan, and looking back, although students still required support in planning and answer verification. The assessment can be used by teachers to evaluate students’ problem-solving ability after instruction. The originality of this study lies in integrating Polya’s problem-solving stages, polyhedral geometry, and summative assessment.
Co-Authors Abdul Rochman Achmad Bashori Achmad Yudi Setiawan Adi Nugraha Agus Widodo Agusutrisno Agusutrisno Agusutrisno Agusutrisno Agusutrisno Agusutrisno Agusutrisno Agusutrisno Agusutrisno Agusutrisno Agusutrisno Agusutrisno, Agusutrisno Agusutrisno, Agusutrisno Ahmad Munawir Akbar, Ali Ali Akbar Amalia, Nida Amirullah -, Amirullah Andi Fitriawati Andi Maddeppungeng Antaris Fahrisani Arum Febri Nur Hemiyani Arum Febri Nur Hemiyanti Asnawi Asnawi Asnawi B. A. Sukarno Bayu Bagoes Wicaksono Budi Purnomo Ceri Ahendyarti Chairiyah Chair Deny Adi Setyawan Dina Estining Tyas Lufianawati Dina Prariesa Djibril Tri Bayu Pamungkas Dwi Isyana Achmad Dyva, Neisya Linggadhellya Eka Sutrisno Esterlina Esterlina Fajri Ikhsan Fajri Ikhsan Fardillah, Frena Febri Nur Hemiyani, Arum Febria Surjaman Hanif Fauzan Nadif Hari Sunanto Hemiyani, Arum Febri Nur Hendi Prasetyo Henni Sutryani Hidayatuloh, Ade Taopik Ikhsan, Fajri Ikhsan, Fajri Imamul Muttakin Karina Ayudhia Sasmito Khoirunisa, Nina Laila Puspitasari Anggraini Laksanawati, Ellysa kusuma Linggadhellya Dyva, Neisya Mahmudin Mahmudin Masjudin Masjudin Mokhammad Zulkarnain Muhammad Rafi Munawir, Ahmad Muslim, Jusva Agus Neisya Linggadhellya Dyva Ni Kadek Selvi Pricilia Nida Amalia Nina Khoirunisa Nina Khoirunnisa Nur Septi, Tasya Prasetyo, Hendi Rabbani Ischak Rafi, Muhammad Renta Novaliana Siahaan Rikardo, Dapid Riyanto Rizky Maulidina Rudi Harun Irwansyah Ruth Helen Simarmata Sandy Wahyu Purnomo Semuel Palembangan Septi, Tasya Nur Siwi Woro Herningsih Soleh Uddin Subekti Subekti Susiarni Magdalena Syarif Abdullah Tasya Nur Septi Tumanggor, Arief Hidayat Ummul Mughfiroh Vidiana Anggeranika W. Prabowo Wahyu Prabowo Yoshua Yeremy Budiman Yudha Prawira Yusril Hadi