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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Elemen Jurnal BELAINDIKA (Pembelajaran dan Inovasi Pendidikan)
Muhammad aunur Rofiq
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Education Energy Engineering Languange, Linguistic, Communication & Media Social Sciences Other

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UJI EKSPERIMEN BASIN SILINDER TERHADAP REAKSI ALIRAN VORTEX DENGAN VARIASI TINGGI BLADE (TURBIN) PADA GRAVITATION WATER VORTEX POWER PLANT (GWVPP) Ilmi Rizki Imaduddin; Muhammad aunur Rofiq
ELEMEN : JURNAL TEKNIK MESIN Vol 7 No 2 (2020)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v7i2.121

Abstract

Penelitian uji eksperimen basin silinder terhadap reaksi aliran vortex dengan variasi tinggi blade pada Gravitation Water Vortex Power Plant (GWVPP) bertujuan untuk mengetahui debit air, daya air yang mengalir, pengukuran torsi, daya turbin, dan efisiensi, serta membandingkan pengaruh ketinggian posisi turbin. Penelitian dilakukan menggunakan basin silinder memiliki diameter input 50 cm dan diameter outputnya 5 cm, menggunakan blade turbin L 4 sudu tinggi blade 10 cm, dan tinggi blade 15 cm dan menggunakan variasi penempatan sudu turbin ketinggian 8 cm sampai 28 cm dari permukaan air, untuk variasi tinggi blade 10 cm pada debit air tertinggi dihasilkan 0,85 L/s dan daya air mengalir 3,83 watt, sedangkan hasil dengan variasi blade 15 debit air yang tertinggi 0,636 L/s dan daya air mengalir 2,93 watt. Pada torsi dengan variasi blade 10 cm, torsi maksimum dihasilkan sebesar 0,0011772 Nm, sedangkan untuk blade 15 cm nilai torsi tertinggi 0,0022366 Nm. Untuk nilai daya turbin tertinggi variasi blade 10 cm yaitu 0,03 watt, untuk variasi blade 15 cm daya turbin dihasilkan 0,03 watt. Untuk variasi tinggi blade 10 cm didapat efisiensi turbin 1,38%, pada variasi tinggi blade 15 cm didapatkan hasil efisiensi turbin 6,72%.
Keefektifan Problem Based Learning terhadap Kemampuan Berpikir Kritis Muhammad Aunur Rofiq
Jurnal BELAINDIKA (Pembelajaran dan Inovasi Pendidikan) Vol 1 No 2 (2019): Jurnal BELAINDIKA
Publisher : Nusa Putra University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (308.961 KB) | DOI: 10.52005/belaindika.v1i2.14

Abstract

Critical thinking skills is something very important for children. In social studies, there are material need critical thinking. Pretest in class V SDN Todanan 1, found the critical thinking capability is low. Result of preliminary studies it is known that 44,8% or 13 students have not reached the minimum completeness criteria was currently working in in the form of critical thinking test. The purpose this research is analyze result of studies between control class and experiment class, and analyze the effectiveness PBL for increase student’s result studies. Research design use quasi experimental design type nonequivalent control group design. There are two kinds instrument of this research. The instrument is implementatios of learning instrument and data collection instrument. Data collection method used is critical thinking test. The effectiveness of learnning shown by students learning completeness reached 79% and independent samplet-test show students critical thinking abilities experimental class is better than control class. Critical thinking ability of students experimental class increased by 9,1. The conclusion from this research is that Problem Based Learning Model effective to student’s result social studies. Suggestions for other researchers was need for further research as the development of research in the another subject matter.
EKSPLORASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS V DALAM MENYELESAIKAN SOAL CERITA MELALUI IMPLEMENTASI MODEL PROJECT BASED LEARNING Etika Rindu Wulansari; Fulusia Nurmawati; Muhammad Aunur Rofiq
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 No. 2, Juni 2026 Publish
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.48258

Abstract

Mathematical problem-solving skills when dealing with word problems remain a major obstacle for elementary school students, particularly in analyzing issues, developing action plans, and re-verifying final findings. This study aims to describe the mathematical problem-solving skills of fifth-grade students in solving word problems through the application of the Project Based Learning (PjBL) model, while identifying patterns of students' cognitive processes based on problem-solving criteria. The study applied a qualitative method with an exploratory descriptive design carried out in fifth-grade students of SDN 2 Bogorejo in the second half of the 2025/2026 academic year. Subjects were selected purposively following the diversity of students' mathematical problem-solving abilities. Data collection methods included observation, interviews, word problem tests, and document reviews, with data validation through source and method triangulation. Data processing followed the steps of data reduction, data display, and conclusions based on the Miles and Huberman model. The uniqueness of this study lies in the detailed exploration of elementary school students' mathematical problem-solving skills through the integration of PjBL connected with a structured problem-solving sequence in a story problem situation that is relevant to reality. Research findings indicate that PjBL effectively maps the dynamics of students' thinking at each problem-solving stage. High-achieving students successfully decompose problems sequentially, while the medium- and low-achieving groups still struggle during the planning and assessment phases. Consequently, the use of PjBL fosters dynamic participation, teamwork, and strengthens students' understanding of the material and their ability to solve mathematical problems in a more context-based manner.
Co-Authors Etika Rindu Wulansari Fulusia Nurmawati Ilmi Rizki Imaduddin