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Innovation of Learning Media: Developing a Car Air Conditioning Trainer to Improve Student Performance in Vocational Physics and Engineering Afriwandi; Maksum, Hasan; Rifdarmon; Indrawan, Eko
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12423

Abstract

This study aims to develop a mobile air conditioning (AC) trainer as an innovative learning medium to enhance students’ understanding, interest, and performance in automotive AC systems. The research adopted the Research and Development (R&D) approach using the 4D model, which consists of the Define, Design, Develop, and Disseminate stages. Validation was conducted by media and material experts, yielding Aiken’s V coefficients of 0.93 and 0.96, respectively, categorized as “Valid.” The practicality test involving teachers and students obtained mean scores of 94.20% and 96.24%, categorized as “Highly Practical.” The effectiveness of the developed trainer was evaluated through pretest and posttest data, resulting in an N-Gain score of 0.69, which indicates a “High” level of improvement. These findings demonstrate that the developed AC trainer is valid, practical, and effective as instructional media in vocational education, particularly in enhancing students’ academic achievement in automotive air conditioning systems.
Analisis Pengaruh Modifikasi Sudut Kontak Primary Pulley dan Implementasi Roller Sliding terhadap Karakteristik Torsi dan Daya Motor Yamaha Aerox 155cc Pulungan, M. Ady Safutra; Yulia Basri, Irma; Rifdarmon; Nanda, Iffarial
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 3 No. 4 (2025): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v3i4.324

Abstract

Penelitian ini membahas peningkatan performa mesin sepeda motor matik Yamaha Aerox 155cc melalui optimasi sistem Continuously Variable Transmission (CVT). Fokus kajian adalah perubahan sudut primary pulley dan pemilihan massa roller, karena keduanya menentukan karakter penyaluran torsi dan daya. Metode eksperimen menggunakan desain faktorial pada dua sudut primary pulley (14° standar dan 13,5° modifikasi) dan tiga jenis roller (standar, sliding 12 gram, sliding 10 gram). Uji performa dilakukan dengan chassis dynamometer pada rentang 3000–9000 rpm dengan tiga pengulangan tiap konfigurasi. Hasil menunjukkan bahwa kombinasi primary pulley 13,5° dan sliding roller 10 gram meningkatkan daya maksimum dari 7,35 kW menjadi 9,52 kW atau sekitar 22,8% dibandingkan kondisi standar, sedangkan torsi tertinggi 11,70 Nm dicapai pada pulley 13,5° dengan roller standar. Temuan ini menegaskan bahwa pengaturan sudut pulley dan konfigurasi roller yang tepat mampu mengoptimalkan transmisi CVT dan menjadi dasar teknis bagi strategi tuning yang efisien dan ekonomis. This study investigates improvement of Yamaha Aerox 155cc scooter performance through optimization of the Continuously Variable Transmission (CVT) system. The analysis focuses on primary pulley angle and roller mass selection, since both parameters govern torque and power delivery. A factorial experimental design used two primary pulley angles (standard 14° and modified 13.5°) and three roller types (standard, 12 g sliding, 10 g sliding). Performance tests were conducted on a chassis dynamometer over 3000–9000 rpm with three repetitions for each configuration. The combination of a 13.5° primary pulley and a 10 g sliding roller increased maximum power from 7.35 kW to 9.52 kW, or about 22.8% above the standard configuration, while the highest torque of 11.70 Nm was obtained from the 13.5° pulley with standard rollers. These findings show that appropriate pulley-angle adjustment and roller configuration can optimize CVT transmission and support efficient and economical tuning strategies.
Analisis Kinerja Ignition Booster terhadap Karakteristik Emisi CO, HC, CO₂, dan O₂ pada Sepeda Motor Honda Beat FI 2013 Rahmat Hidayah, Khalik; Muslim; Rifdarmon; Fernandez, Donny
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 4 No. 1 (2026): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v4i1.325

Abstract

Penggunaan sepeda motor yang terus meningkat berkontribusi pada pencemaran udara melalui emisi gas buang. Penelitian ini menganalisis pengaruh pemasangan Ignition Booster tipe plasma pada sistem pengapian terhadap emisi gas buang sepeda motor Honda Beat FI 2013. Penelitian deskriptif-eksperimental ini dilakukan pada kondisi putaran idle menggunakan four-gas analyzer, dengan tiga kali pengulangan untuk kondisi standar dan setelah pemasangan Ignition Booster. Hasil menunjukkan penurunan emisi karbon monoksida (CO) sebesar 23,52% (0,513% menjadi 0,39%), hidrokarbon (HC) 11,05% (60,33 ppm menjadi 53,66 ppm), dan karbon dioksida (CO₂) 2,12% (4,7% menjadi 4,6%), sementara kadar oksigen (O₂) meningkat 49,63% (8,18% menjadi 12,24%). Seluruh nilai emisi berada jauh di bawah ambang batas standar Euro 3. Temuan ini mengindikasikan bahwa penguatan energi percikan melalui Ignition Booster mampu meningkatkan kualitas pembakaran dan berpotensi menjadi solusi retrofit sederhana untuk menurunkan emisi kendaraan roda dua. The rapid growth of motorcycle use substantially contributes to urban air pollution through exhaust emissions. This study examines the effect of installing a plasma-type Ignition Booster on the ignition system of a Honda Beat FI 2013 motorcycle on its exhaust-gas composition. A descriptive experimental design was applied at idle speed using a four-gas analyzer, with three repeated measurements for the baseline and booster conditions. The Ignition Booster reduced carbon monoxide (CO) emissions by 23.52% (0.513% to 0.39%), hydrocarbons (HC) by 11.05% (60.33 ppm to 53.66 ppm), and carbon dioxide (CO₂) by 2.12% (4.7% to 4.6%), while oxygen (O₂) concentration increased by 49.63% (8.18% to 12.24%). All emission levels were well below the Euro 3 limits. These findings indicate that strengthening spark energy via an Ignition Booster improves combustion quality and offers a simple retrofit strategy to reduce emissions from existing two-wheeled vehicles.
Efektivitas Modul Pembelajaran Berbasis Web terhadap Aktivitas dan Hasil Belajar Sistem Kelistrikan Sepeda Motor Siswa Kelas XI TSM SMKN 2 Batusangkar Ikhsan, Ikhsanul Fikri; Martias; Maksum, Hasan; Rifdarmon
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 4 No. 1 (2026): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v4i1.347

Abstract

Rendahnya aktivitas belajar siswa pada materi sistem kelistrikan sepeda motor di SMK berdampak langsung pada hasil belajar. Penelitian ini bertujuan meningkatkan aktivitas belajar dan hasil belajar siswa kelas XI TSM melalui penerapan modul pembelajaran berbasis web. Penelitian tindakan kelas ini dilaksanakan dalam dua siklus dengan model Kemmis dan McTaggart, masing-masing terdiri atas tahap perencanaan, tindakan, observasi, dan refleksi. Subjek penelitian adalah 24 siswa SMK Negeri 2 Batusangkar. Data aktivitas belajar diperoleh melalui lembar observasi, sedangkan hasil belajar diukur menggunakan tes objektif. Hasil menunjukkan peningkatan skor rata-rata aktivitas belajar dari 3,04 pada siklus I menjadi 3,50 pada siklus II. Rata-rata nilai hasil belajar naik dari 74,67 menjadi 82,33, dengan ketuntasan belajar meningkat dari 62,5% menjadi 100%. Temuan ini mengindikasikan bahwa modul pembelajaran berbasis web efektif untuk meningkatkan aktivitas belajar dan hasil belajar pada pembelajaran sistem kelistrikan sepeda motor. Implikasinya, modul ini layak dijadikan alternatif media pembelajaran berbasis teknologi di SMK. Low student learning activities in motorcycle electrical systems lessons at vocational high schools directly affect learning outcomes. This study aimed to improve the learning activities and learning outcomes of class XI TSM students through a web-based learning module. Classroom action research with the Kemmis and McTaggart model was conducted in two cycles, each consisting of planning, action, observation, and reflection. The participants were 24 students of SMK Negeri 2 Batusangkar. Learning activities were measured using observation sheets, and learning outcomes were assessed with objective tests. The findings showed that the average learning-activity score increased from 3.04 in cycle I to 3.50 in cycle II. The mean test score rose from 74.67 to 82.33, while mastery learning improved from 62.5% to 100%. These results indicate that a web-based learning module is effective for enhancing learning activities and learning outcomes in motorcycle electrical system learning.
Efektivitas Model Active Knowledge Sharing Berbantuan Augmented Reality terhadap Keaktifan Belajar Peserta Didik SMK Sholat, Amin; Muslim; Rifdarmon; Nanda, Iffarial
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 3 No. 4 (2025): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v3i4.373

Abstract

Keaktifan belajar peserta didik pada mata pelajaran Sistem Pemindah Tenaga di SMKN 4 Pariaman masih rendah, sehingga diperlukan model pembelajaran yang lebih partisipatif dan berbasis teknologi. Penelitian ini bertujuan menganalisis pengaruh model Active Knowledge Sharing berbantuan media Augmented Reality (AR) terhadap keaktifan belajar peserta didik kelas X TKR. Penelitian menggunakan metode kuantitatif dengan desain one-group pretest–posttest pada 33 peserta didik yang dipilih dengan teknik sampling jenuh. Data keaktifan belajar dikumpulkan melalui angket dan dianalisis menggunakan uji paired samples t-test dan effect size Cohen’s d. Hasil penelitian menunjukkan peningkatan skor rata-rata dari kategori “kurang aktif” menjadi “aktif”, dengan nilai signifikansi 0,001 (p < 0,05) dan Cohen’s d = 2,576 yang mengindikasikan pengaruh sangat besar. Temuan ini menegaskan bahwa integrasi Active Knowledge Sharing dan Augmented Reality efektif meningkatkan keaktifan belajar dalam pembelajaran vokasional otomotif. Students’ learning activeness in the Power Transmission Systems subject at SMKN 4 Pariaman remains low, indicating the need for more participatory, technology-based instruction. This study investigates the effect of the Active Knowledge Sharing learning model assisted by Augmented Reality (AR) on the learning activeness of tenth-grade automotive students. A quantitative one-group pretest–posttest design was applied to 33 students selected through saturated sampling. Learning activeness data were collected using questionnaires and analyzed with paired-samples t-test and Cohen’s d effect size. The results show an increase in mean scores from the “less active” to the “active” category, with a significance value of 0.001 (p < 0.05) and Cohen’s d = 2.576, indicating a very large effect. These findings confirm that integrating Active Knowledge Sharing with Augmented Reality is effective for promoting learning activeness in vocational automotive education.
Analisis Korelasional antara Disiplin Belajar dan Hasil Belajar Mata Pelajaran Dasar-Dasar Program Keahlian (DDPK) Siswa Kelas X Teknik Otomotif SMK Negeri 1 Baso Rinaldi, Dedi; Rifdarmon; Maksum, Hasan; Nanda, Iffarial
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 4 No. 1 (2026): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v4i1.387

Abstract

Penelitian ini bertujuan menganalisis hubungan antara disiplin belajar dan hasil belajar siswa pada mata pelajaran Dasar-Dasar Program Keahlian (DDPK) Jurusan Teknik Otomotif di SMK Negeri 1 Baso. Pendekatan yang digunakan adalah kuantitatif dengan metode korelasional terhadap 49 siswa kelas X. Disiplin belajar diukur menggunakan angket skala Likert yang telah diuji validitas dan reliabilitasnya, sedangkan hasil belajar diperoleh dari dokumentasi nilai rapor. Data dianalisis dengan statistik deskriptif dan korelasi Product Moment Pearson. Hasil analisis menunjukkan bahwa disiplin belajar berada pada kategori baik (M = 162,22) dan hasil belajar pada kategori cukup baik (M = 79,51). Koefisien korelasi r = 0,203 dengan nilai p = 0,163 (> 0,05) menunjukkan hubungan positif namun lemah dan tidak signifikan, dengan kontribusi hanya 4,12% terhadap variasi hasil belajar. Temuan ini mengindikasikan bahwa peningkatan disiplin belajar perlu disertai penguatan faktor lain untuk mengoptimalkan prestasi belajar siswa SMK. Education plays an important role in improving human resources, and learning discipline is often regarded as a key determinant of achievement. This study investigates the relationship between learning discipline and learning outcomes in the Basic Competency Program (DDPK) subject of the Automotive Engineering Department at SMK Negeri 1 Baso. A quantitative correlational design was applied to 49 tenth-grade students. Learning discipline was measured using a validated Likert-scale questionnaire, whereas learning outcomes were obtained from school records. Data were analysed using descriptive statistics and Pearson product–moment correlation. The results show that learning discipline is generally good (M = 162.22) and learning outcomes are fairly good (M = 79.51). The correlation between both variables is positive but weak and not statistically significant (r = 0.203, p = 0.163), explaining only 4.12% of the variance. These findings indicate that improving learning discipline alone is insufficient to enhance vocational students’ academic achievement.
Co-Authors Afriani, Ovanita Afriliardi, Rio Afriwandi Ahda, Mukhtarihil Andrizal Ariska, Rosi Asshadri, Zaka Baehaqi Baharudin, Agus Chinto Welgeo Fani Dani Saputra, Hendra Donny Fernandez Eko Indrawan Fathani, Rijalul Fauzan, Nauval Firman, Agus Hardani Putera, Febri Hasan Maksum Hendra Dani Saputra Ikhsan, Ikhsanul Fikri Ikram Irma Yulia Basri Lasyatta Syaifullah M Fajri M Nasir M. Yasep Setiawan Martias Milana Milana Muhammad Fikri Muhammad Kadafi Muslim Muslim Muslim Nanda, Iffarial Nuzul Hidayat, Nuzul Oktaviani, Ranti Pramulia, Rahul Pulungan, M. Ady Safutra Purwanto, Wawan Rahmat Hidayah, Khalik Ramadhania, Amdanova Remon Lapisa Rinaldi, Dedi Saleh Hasibuan, Erwin Sholat, Amin Sugiarto, Toto Suherman, Egi Toto Sugiarto WAGINO Wakhinuddin Wakhinuddin S Yulia Basri, Irma Yunus, Ahmad