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All Journal Jurnal Pendidikan Teknologi dan Kejuruan Teknomekanik Jurnal Vokasi Mekanika Tsaqofah: Jurnal Penelitian Guru Indonesia Journal of Engineering Researcher and Lecturer
A, Yufrizal
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Chemical Engineering, Chemistry & Bioengineering Education Engineering Mechanical Engineering

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From passive to critical consumption: The role of educational content in short videos to improve students' critical thinking skills Aspar, Fathir; Refdinal, Refdinal; Erizon, Nelvi; Jasman, Jasman; Irzal, Irzal; A, Yufrizal
Jurnal Pendidikan Teknologi Kejuruan Vol 8 No 1 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v8i1.42323

Abstract

The engaging and personalized nature from short video makes it quickly popular, yet concerns persist about their potential to diminish critical thinking skills. This study investigates whether short videos with educational content can improve students' critical thinking skills. Using a quasi-experiment method, Thirty-three participants were divided into control and experimental groups, with critical thinking measured using the Holistic Critical Thinking Scoring Rubric (HCTSR) based on essay analysis in pretest and posttest. After administering educational short videos to the experimental group, the results showed that there was an increase in students' critical thinking skills, shown by the result of controlling the pretest variable through the ANCOVA test with a p-value of <0.001. The result highlights the potential of educational short videos as tools for fostering critical thinking by providing interventions which prioritize treatment fidelity through standardized protocols (SOPs) for content delivery, validating assessment tools, and structuring content design. Recommendations for future research include larger sample sizes, repeated data collection at strategic intervals, and rigorous validation of question complexity.
The Influence of Learning Motivation Using the Project-Based Learning Model on Student Learning Outcomes in PKK Subjects at SMK Negeri 5 Padang. Paderma, Deri Syafamukmin; Efendi, Fiki; A, Yufrizal; Rahim, Bulkia
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 3 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i3.849

Abstract

The main problem in this research is: How does learning motivation using the Project Based Learning Model affect learning outcomes in Class XI PKK subjects at SMK Negeri 5 Padang. The aim of this research was designed to: measure the influence of learning motivation using the Project Based Learning model on learning outcomes in Class XI PKK subjects at SMK Negeri 5 Padang. In this research, researchers used quantitative research methods, namely correlational research. Correlational research is research used to find out the magnitude of the relationship between variables. The sample for the research carried out was 31 students in the Class XI PKK subject at SMK Negeri 5 Padang. This research aims to measure the influence of learning motivation using the Project-Based Learning model on learning outcomes, using questionnaire instruments and test sheets that are filled in before and after being given treatment. Descriptive analysis shows that the average student learning motivation score is in the high category, while the average learning outcomes are in the good category. Correlation between Learning Motivation and Learning Outcomes: The correlation value of 0.963 is greater than the r table of 0.355, which shows that there is a significant positive relationship between students' Learning Motivation and their learning outcomes. The conclusion from this research is that students' learning motivation has a significant relationship to their learning outcomes in implementing the Project-Based Learning model. Student learning motivation is proven to have a greater influence on learning outcomes.
Installation of gussets to reduce stress on the junction between the arm and bridge on the swing arm Hidayat, Nailul; A, Yufrizal; Nurdin, Hendri; Kassimov, Farid; Kenzhaliyev, Elnar
Journal of Engineering Researcher and Lecturer Vol. 2 No. 2 (2023): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v2i2.75

Abstract

The swing arm is one of the main components of a motorcycle that functions as a connection between the rear wheel and the frame. Under loading conditions, the joint area between the arm and the bridge experiences significant stress, leading to fractures in that region. This study aims to investigate the effectiveness of installing gussets to reduce the stress that occurs at the joint area between the arm and the bridge in the swing arm of ELGO electric motorcycles. The research was conducted using the static analysis simulation method with Solidworks 2021-2022 Research License software. The loading conditions were simulated based on the actual usage of the electric motorcycle. The simulation results revealed that without the installation of gussets, the joint area between the arm and the bridge in the swing arm experienced stress exceeding the yield strength of the material. This would inevitably lead to the breakage of the swing arm and potentially cause accidents for motorcycle riders. However, after the gussets were installed, the stress at the joint area between the arm and the bridge remained below the yield strength of the material. Based on these findings, it can be concluded that the installation of gussets successfully reduced the stress at the joint area between the arm and the bridge in the swing arm. This research outcome can serve as a reference for the design of swing arms for electric motorcycles.
Optimizing student learning in Computer Numerical Control subject: A comprehensive analysis of influential factors Fadri, Muhammad Al; A, Yufrizal; Fernanda, Yolli; Prasetya, Febri
Journal of Engineering Researcher and Lecturer Vol. 2 No. 3 (2023): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v2i3.114

Abstract

The learning outcomes achieved by students are influenced by many factors. This study aims to determine the level of support of factors (motivation, interest, family, teacher's role, learning methods and learning facilities) that influence the learning process in achieving student learning outcomes in CNC learning in class XI. The subjects in the study were Class XI students majoring in Mechanical Engineering at SMK Negeri 5 Padang in the 2022/2023 academic year totalling 37 people. Because the number of research subjects (population) is less than 100 people, so all of them are taken as samples or total sampling. Data collection was carried out using observation, questionnaires and documentation. Data analysis techniques using descriptive statistical techniques. From the data analysis, it shows that of each factor studied, the learning facility factor has the lowest level of support for student academic success compared to other factors that have been studied by researchers. Therefore, learning facilities at SMK Negeri 5 Padang in CNC subjects need to be improved again to support the student learning process and achieve better learning achievements for students.
PENINGKATAN HASIL BELAJAR PEMBELAJARAN TEKNIK MESIN FRAIS MENGGUNAKAN MODEL PEMBELAJARAN CYCLE 5E Tanjung, Jamal Dermawan; A, Yufrizal; Waskito, Waskito; Wulansari, Rizky Ema
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 2 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i2.670

Abstract

Pendidikan vokasi bertujuan menyiapkan siswa untuk dapat masuk dunia industri atau pendidikan yang lebih tinggi yang di bekali keterampilan yang relevan. Penelitian ini dilakukan untuk melihat peningkatan hasil belajar teknik mesin frais pendidikan vokasi dan keterlibatan siswa kelas XI di SMKN 5 Padang dengan menerapkan model Siklus Belajar 5E. Penelitian ini adanya peningkatan progresif dalam aktivitas belajar peserta didik di seluruh siklus, meskipun persentase keseluruhan siswa yang memenuhi target penelitian masih di bawah ekspektasi. Berdasarkan hasil penelitian, implementasi Learning Cycle 5E di pendidikan kejuruan berhasil menumbuhkan hasil belajar para siswa di aspek kognitif. Model ini memfasilitasi partisipasi aktif siswa dan eksplorasi materi pelajaran, sehingga terjadi peningkatan relatif signifikan yang sejumlah siswanya mencapai penguasaan materi. Hasil penelitian menampilkan keberhasilan pada peningkatan keterlibatan dan pemahaman siswa, yang mengarah kepada hasil belajar. Evaluasi dilakukan di tiap siklus dengan menggunakan soal-soal ranah kognitif untuk mengukur hasil belajar siswa. Penelitian ini menyimpulkan bahwa model Siklus Belajar 5E merupakan pendekatan yang efektif untuk mengajarkan mata pelajaran kejuruan, melampaui indikator keberhasilan yang sudah ditetapkan. Sebagai hasilnya bahwa penelitian ini memiliki tingkat ketuntasan klasikal mencapai 87%, melebihi batas kelulusan minimal 75%. Maka dari itu, penelitian mendukung keefektifan Siklus Belajar 5E dalam peningkatan hasil belajar teknik mesin frain para peserta didik.
OPTIMALISASI PENERAPAN PEMBELAJARAN KERJASAMA TIPE JIGSAW TERHADAP HASIL BELAJAR SISWA DASAR TEKNIK MESIN Verdian, Verdi; A, Yufrizal; Primawati, Primawati; Prasetya, Febri
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 2 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i2.708

Abstract

Belajar adalah interaksi yang menekankan bahwa proses pembelajaran terjadi melalui hubungan antara pengajar dan peserta didik sebagai hasil dari pengalaman yang diperkuat untuk diimplementasikan dalam kehidupan sehari-hari. Saat ini, metode pembelajaran yang umumnya digunakan masih cenderung bersifat konvensional, dengan guru sebagai sumber utama informasi dan siswa lebih sebagai penerima pengetahuan. Kondisi ini mungkin tidak optimal untuk mengajarkan materi Dasar Teknik Mesin yang membutuhkan pemahaman mendalam dan keterampilan praktis. Penelitian ini berfokus pada optimalisasi penerapan pembelajaran Kooperatif Tipe Jigsaw dalam mata pelajaran dasar teknik mesin di SMK, menggunakan metode Penelitian Tindakan Kelas dengan selama tiga siklus. Evaluasi hasil belajar siswa dilakukan melalui tes dan proyek. Tujuannya adalah meningkatkan hasil belajar dan keterlibatan siswa. Data dianalisis dengan mengonversi skor ke skala 1-4 untuk menentukan kategori predikat hasil belajar. Penelitian diharapkan memberikan kontribusi signifikan untuk meningkatkan kualitas pendidikan teknik mesin dasar di SMK. Penggunaan model Pembelajaran Kooperatif Tipe Jigsaw pada Mata Pelajaran Mekanika Teknik Dasar di SMK Negeri 1 Sumbar berhasil meningkatkan hasil belajar siswa dari siklus ke siklus, dengan ketuntasan klasikal mencapai 88,57% pada siklus III. Model ini terbukti efektif dalam meningkatkan prestasi belajar siswa pada mata pelajaran Pekerjaan Mekanik Dasar di SMK Negeri 1 Sumbar. Kesimpulannya, penerapan model Pembelajaran Kooperatif Tipe Jigsaw efektif dalam meningkatkan hasil belajar siswa.
Implementation of project-based learning for improve students' critical thinking skills in creative product and entrepreneurship subjects Febrianti, Roza; A, Yufrizal; Putra, Randi Purnama; Phongdala, Phonepasith
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 4 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i4.34523

Abstract

The implementation of monotonous learning that lacks active student participation can contribute to the low critical thinking skills of students. This research aims to enhance students' critical thinking skills through the application of project-based learning (PjBL). The study evaluates the extent to which students' critical thinking skills can be improved through the implementation of PjBL. The research employs a Quasi-Experimental method. The study subjects consist of two groups: the experimental group, which utilizes the PjBL, and the control group, which follows a conventional model. Overall, after conducting prerequisite tests and hypothesis testing, a significant difference in critical thinking scores is observed between the experimental and control groups. Students are provided with the opportunity to exercise their critical thinking skills during the execution of project tasks. Consequently, it can be concluded that the PjBL model positively impacts the essential thinking abilities of 11th-grade machanical engineering students in creative products and entrepreneurship subject.
From passive to critical consumption: The role of educational content in short videos to improve students' critical thinking skills Aspar, Fathir; Refdinal, Refdinal; Erizon, Nelvi; Jasman, Jasman; Irzal, Irzal; A, Yufrizal
Jurnal Pendidikan Teknologi Kejuruan Vol 8 No 1 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v8i1.42323

Abstract

The engaging and personalized nature from short video makes it quickly popular, yet concerns persist about their potential to diminish critical thinking skills. This study investigates whether short videos with educational content can improve students' critical thinking skills. Using a quasi-experiment method, Thirty-three participants were divided into control and experimental groups, with critical thinking measured using the Holistic Critical Thinking Scoring Rubric (HCTSR) based on essay analysis in pretest and posttest. After administering educational short videos to the experimental group, the results showed that there was an increase in students' critical thinking skills, shown by the result of controlling the pretest variable through the ANCOVA test with a p-value of <0.001. The result highlights the potential of educational short videos as tools for fostering critical thinking by providing interventions which prioritize treatment fidelity through standardized protocols (SOPs) for content delivery, validating assessment tools, and structuring content design. Recommendations for future research include larger sample sizes, repeated data collection at strategic intervals, and rigorous validation of question complexity.
Optimizing vertical-axis wind turbine designs: A comparative CFD analysis of savonius, darrieus, and savonius-darrieus configurations Erizon, Nelvi; Refdinal, Refdinal; Jasman, Jasman; Irzal, Irzal; A, Yufrizal; Fahrezi, Muhammad Shadiq; Fernanda, Firza; Fadillah, Egi; Pepito, Ma Leona Maye B.
Teknomekanik Vol. 8 No. 2 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v8i2.33172

Abstract

This study aims to evaluate the performance of vertical-axis wind turbines (VAWTs) with three different configurations, including Savonius, Darrieus, and a Savonius-Darrieus hybrid wind turbine, using Computational Fluid Dynamics (CFD) simulations. The methodology involves 3D geometry modeling, simulation parameter setup, meshing, and post-simulation analysis using SolidWorks 2022 software. The simulation results indicate that the Savonius turbine achieves the highest power coefficient (Cp) and torque coefficient (Ct) among the three designs, with a maximum Cp value of 0.5 at a Tip-Speed Ratio (TSR) of 0.4. Conversely, the hybrid turbine demonstrates lower efficiency, although it theoretically offers potential for improving performance at low wind speeds. Pressure and flow velocity distributions reveal that the Savonius turbine maintains the most stable pressure pattern compared to the other configurations. These findings highlight the potential of the Savonius turbine as a small-scale renewable energy solution, particularly in urban areas with low wind speeds. Further research is recommended to optimize hybrid turbine designs using machine learning approaches and empirical validation through field experiments to support the achievement of Sustainable Development Goals (SDGs), particularly Goal 7, affordable and clean energy.
Co-Authors Abral, Hairul Agustian, Ganda Ambiyar, Ambiyar Ardiyansyah, M Iksan Arwizet Arwizet, Arwizet Aspar, Fathir Budi Syahri Bulkia Rahim Darmawi . Efendi, Defindo Erizon, Nelvi Erlanda, Rendi Fadillah, Egi Fadri, Muhammad Al Fahrezi, Muhammad Shadiq Febri Prasetya Febrianti, Roza Fernanda, Firza Fiki Efendi Habibbullah, Ade Hidayat, Nailul Ilhamsyah, Febrian Irzal, Irzal Jasman Jasman Kassimov, Farid Kenzhaliyev, Elnar Laghari, Imtiaz Ali Nurdin Hendri Paderma, Deri Syafamukmin Pepito, Ma Leona Maye B. Phongdala, Phonepasith Primawati Primawati, Primawati Putra, Randi Purnama Rahmadiawan, Dieter Refdinal, Refdinal Setiawan, Sepdirama Suparno Syahrul Syahrul Tanjung, Jamal Dermawan Verdian, Verdi Wanda Afnison Waskito Waskito, Waskito Wifa, Iklil Wulansari, Rizky Ema Yolli Fernanda Zulmaidas, Ikhsan