Claim Missing Document
Check
Articles

Found 30 Documents
Search

Strategi Pengajaran Sains dengan Analogi Suatu Metode Alternatif Pengajaran Sains Sekolah Prastowo, Tjipto
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 1, No 1 (2011)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v1n1.p8-13

Abstract

Peran analogi sebagai salah satu strategi pengajaran sains dalam menunjang proses belajar mengajar di sekolah sangat besar. Strategi ini dapat digunakan sebagai suatu metode alternatif untuk memecahkan kebuntuan komunikasi belajar antara guru dan siswa, khususnya bila siswa menghadapi kesulitan belajar dalam hal memahami materi ajar baru namun memiliki kemiripan alur berpikir dengan materi ajar sebelumnya. Sebagai basis berpikir metode pengajaran dengan analogi, artikel ini akan memperkenalkan dan mendiskusikan dua konsep utama, yaitu: konsep rujukan, materi ajar yang sudah dipahami sebelumnya oleh siswa, dan konsep target, materi ajar yang akan dipahamkan kepada siswa. Pembahasan kedua konsep tersebut akan disertai dengan beberapa contoh kasus dalam pengajaran fisika di sekolah. Tidak tertutup kemungkinan bagi para guru di kelas untuk memanfaatkan metode alternatif ini sebagai salah satu cara untuk meningkatkan keterampilan berpikir siswa. Dengan demikian, pengayaan materi ajar tidak saja dapat dilakukan melalui latihan soal berulang dan berjenjang, melainkan juga dapat dengan memperkenalkan paradigma baru agar diperoleh spektrum pemahaman materi ajar yang lebih luas dan komprehensif.
PENGEMBANGAN PERANGKAT PEMBELAJARAN FISIKA SMA MODEL GUIDED INQUIRY UNTUK MENINGKATKAN PEMAHAMAN KONSEP SISWA MATERI LISTRIK DINAMIS Al Amin, Rouf; Jatmiko, Budi; Prastowo, Tjipto
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v1n2.p56-61

Abstract

Lack of understanding of the concepts students are not due only to the lack of ability of students to absorb the material submitted by teachers, but also influenced by the ability of teachers to manage teaching and learning activities. Teachers have an important role in the sustainability of good teaching, one of them to set up an exciting learning device so enthusiastic student learning. This study aims to develop learning tools guided inquiry-based high school physics to enhance students' understanding of concepts on the subject of Dynamic Electricity. Development of the 4D model and tested in class X in SMAN 1 Babat odd semester academic year 2012/2013. This research is the development of research trial design using the One Group Pre-test and Post-test Design. Data collection methods used were questionnaires and observation, while the data analysis techniques using quantitative descriptive analysis and qualitative descriptive analysis. The result showed that some of the findings: RPP performing well and a high degree of reliability; activity is the dominant student observation / experiment; students 'understanding of the concept after learning improving students' responses to learning a positive model of guided inquiry. Based on the results of this study concluded that the quality of learning that have developed viable use in teaching to enhance students' understanding of physics concepts. Kurangnya pemahaman konsep siswa tidak disebabkan hanya pada kurangnya kemampuan siswa menyerap materi yang disampaikan guru, tetapi juga dipengaruhi oleh kemampuan guru dalam mengelola kegiatan belajar mengajar. Guru mempunyai peran penting pada keberlangsungan pembelajaran yang baik, salah satunya untuk menyiapkan perangkat pembelajaran yang menarik sehingga siswa antusias mengikuti pelajaran. Penelitian ini bertujuan mengembangkan perangkat pembelajaran fisika SMA berbasis guided inquiry untuk meningkatkan pemahaman konsep siswa pada pokok bahasan Listrik Dinamis. Pengembangan perangkat  menggunakan model 4D dan diujicobakan pada siswa kelas X di SMAN 1 Babat pada semester ganjil tahun ajaran 2012/2013. Dari hasil penelitian diperoleh beberapa temuan yaitu: RPP terlaksana dengan baik dan derajat reliabilitas tinggi; aktivitas siswa yang dominan adalah pengamatan/percobaan; pemahaman konsep siswa setelah pembelajaran meningkat; respons siswa terhadap pembelajaran model guided inquiry positif.Berdasarkan hasil penelitian dapat disimpulkan bahwa perangkat pembelajaran yang dikembangkan mempunyai kualitas layak digunakan dalam pembelajaran untuk meningkatkan pemahaman konsep fisika siswa.
VALIDASI PERANGKAT PEMBELAJARAN IPA BERBASIS INKUIRI TERBIMBING UNTUK MELATIHKAN KETERAMPILAN MEMECAHKAN MASALAH PADA POKOK BAHASAN CERMIN Indarmaji, Dir; Susantini, Endang; Prastowo, Tjipto
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 5, No 2 (2016)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v5n2.p920-923

Abstract

This research aimed to produce science learning material guided inquiry base a feasible to practice problem solving skills on topic mirror. The learning material was tested to VIII grade students of SMPN 1 Sedati Sidoarjo of the academic year 2014/2015. This research was one which used 4-D model development that was modified 3D (dissemination stage is not done). The test device used one group pretest-posttest design. Result of the research showed validity of learning material well categorized and could be used in learning with few revisions resulted realibility in RPP assessment, worksheet, student learning result and problem solving skills as much as 98%, 98,70%, (95,80% and 98,60%), and 98,82%. Based on result, research discussion, could be summarized that guided inquiry based science learning material to practice problem solving skills on topic mirror is feasible to be used in learning. Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran IPA berbasis inkuiri terbimbing yang layak untuk melatihkan keterampilan memecahkan masalah pada pokok bahasan cermin. Perangkat pembelajaran tersebut diujikan pada siswa kelas VIII SMPN 1 Sedati Sidoarjo tahun pelajaran 2014/2015. Penelitian ini merupakan penelitian pengembangan dengan model 4-D yang dimodifikasi menjadi 3D (tahap desiminasi tidak dilakukan). Rancangan ujicoba perangkat menggunakan one group pretest-posttest design. Hasil penelitian menunjukkan validitas perangkat pembelajaran berkategori baik dan dapat digunakan dalam pembelajaran dengan sedikit revisi diperoleh reliabilitas penilaian RPP, LKS, hasil belajar siswa, dan keterampilan memecahkan masalah sebesar 98%, 98,70%, (95,80% dan 98,60%), dan 98,82. Berdasarkan hasil dan diskusi penelitian, dapat disimpulkan bahwa perangkat pembelajaran IPA berbasis inkuiri terbimbing untuk melatihkan keterampilan memecahkan masalah pada pokok bahasan cermin layak digunakan dalam pembelajaran.
THE IMPLEMENTATION OF QUIZ TEAM TYPE ACTIVE LEARNING STRATEGY TO INCREASE THE UNDERSTANDING ON MOVEMENT SYSTEM CONCEPT AT JUNIOR HIGH SCHOOL Wahyuni, Hiatun Sri; Agustini, Rudiana; Prastowo, Tjipto
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 7, No 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v7n2.p1487-1495

Abstract

This study was conducted to increase the understanding on movement system concept at Junior High School.This study belongs to pre-experimental using One Group Pretest and Posttest Design. Subjects of the research were 32 students. Analysis of research data is carried out descriptive quantitatively. Result of this study shows that: (1) lesson plan gets average score of 3.72 which is categorized as excellent; (2) Normalized Gain Score  is 0.71; and (3) students response positively; 98,74% of students state they are pleased with this teaching model, 96,88% state it is new for them, 98,75% state it is easyto do, 98,13% state their agreement, and 91% request the application of this model on the following lessons; and (4) the highest learning activity is reading teaching material, of 22,85% students. As a conclusion from this research is that quiz team model of teaching is applicable to increase the understanding on movement system concept at Junior High School.
Perambatan Gravity Current dalam Skala Laboratorium sebagai Pemodelan Lahar Dingin dan Intrusi Air Laut Budianto, Wawan Eko; Sucahyo, Imam; Prastowo, Tjipto; Rahmawati, Endah
Sains & Matematika Vol 1, No 2 (2013): April, Sains & Matematika
Publisher : Sains & Matematika

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

Abstract

In the context of problem-based learning, gravity current experiment to model saltwater intrusion and “lahar dingin” using a water tank available at the Laboratory of Earth Science in the Department of Physics, the State University of Surabaya is research breakthrough in physics education. This makes physics teaching meaningful as it is part of the introduction of disaster mitigation education to students in the department. The experiments were performed in two stages to determine the speed and depth of gravity current. In the first stage, a number of runs were conducted by varying density difference between saltwater and freshwater (1%, 3%, or 5%). The two fluids were filled in the tank at the total water depth of 10 cm or 20 cm. In the second stage, other runs were conducted using a water tank of the same length but twice narrower. The results show that the dimensionless speed is measured to be 0.44 ± 0.03, independent of the width of the tank. Relatively compared to the speed, the current depth is difficult to measure owing to the presence of mixing. However, experimental photos show that the current depth is best estimated to be 0.32-0.46 H, where H is the total depth 
PELATIHAN PEMBUATAN ALAT PERAGA MESIN STIRLING UNTUK GURU FISIKA SMA Yantidewi, Meta; Prastowo, Tjipto; Deta, Utama Alan
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol 4, No 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ja.v4n1.p51-54

Abstract

 Physics is a part of sciences that underlies the development of advanced technology and the concept of living in harmony with nature. In physics learning, conceptual understanding with direct learning experience might be able to carry out through experimental or practicum activities by utilizing practicum tools in the Physics Laboratory of school and also by holding out some demonstrations during class. The development of thermophysical practicum tools and the arrangement of related student workbook (LKS) are mainly purposed to improve the pedagogical and profession competence of high school physics teachers who are members of MGMP Fisika SMA Dinas Pendidikan Kabupaten Bojonegoro, to be accustomed and skillful to make and use of high school physics learning which is simple and can support high school physics learning. The training activities by the 2017 PKM Team are carried out in three stages: designing, manufacturing of thermophysical practicum tools, and comprehensive evaluations. This activity is expected to increase the pedagogical and profession competence high school physics teachers of Kabupaten Bojonegoro, especially in the manufacture of media and practicum visual This activity is expected to increase the competence of pedagogy and profession of high school physics teachers of Bojonegoro Regency, especially in the manufacture of media and visual practicum visuals as well as a form of teaching a physics-based approach to a scientific approach. Workshop activities are planned to be followed by several high school physics teachers of Bojonegoro Regency. The time of the workshop is on Saturday 21st of October 2017. The average performance of the trainees this time has been very good. The participants' responses to this activity are also very good. Evident from the performance test sheet and training participants 'responses indicating that 70% of the participants had excellent performance and more than 70% of participants stated that the event was excellent in supporting students' understanding of the thermophysical material, especially Stirling Machine.
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS 5E LEARNING CYCLE PADA POKOK BAHASAN ENERGI UNTUK MENINGKATKAN HASIL BELAJAR SISWA SEKOLAH MENENGAH PERTAMA Lalawi, Nancy Adriana; Kardi, Soeparman; Prastowo, Tjipto
Jurnal Penelitian Pendidikan Vol 34, No 2 (2017): October 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpp.v34i2.9615

Abstract

Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran yang valid, praktis dan efektif sehingga dapat meningkatkan hasil belajar siswa di sekolah menengah pertama. Pembelajaran ini dilakukan dengan cara menerapkan perangkat pembelajaran berbasis 5E Learning Cycle yang meliputi Engagement, Exploration, Explanation, Elaboration, dan Evaluation. Penelitian ini menggunakan desain pengembangan dengan model pengembangan Dick and Carey dan desain uji menggunakan desain one group pretest posttest pada 33 siswa kelas VII SMP Negeri 1 Tomohon. Teknik analisis data menggunakan deskriptif kuantitatif-kualitatif. Hasil penelitian menunjukan; 1) Perangkat pembelajaran yang dikembangkan dinyatakan valid; 2) Kepraktisan perangkat pembelajaran ditinjau dari: (a) Keterlaksanaan pembelajaran terlaksana 91,97% dengan sangat baik, (b) 100% siswa aktif mengikuti proses pembelajaran,  (c) 98,24% respon siswa menunjukan sangat positif terhadap perangkat dan pelaksanaan pembelajaran; dan 3) Keefektivan perangkat pembelajaran ditinjau dari peningkatan hasil belajar terlihat dari uji pretest dan posttest sangat meningkat dengan nilai N-Gain sebesar 0,97 berkategori tinggi. Berdasarkan hasil penelitian di atas dapat disimpulkan bahwa perangkat pembelajaran berbasis 5E Learning Cycle yang telah dikembangkan valid, praktis dan efektif untuk meningkatkan hasil belajar siswa SMP pada pokok bahasan energi.
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS INKUIRI TERBIMBING BERBANTUAN SIMULASI PHET DALAM PEMBELAJARAN IPA Sumarauw, Jounne Maya; Ibrahim, Muslimin; Prastowo, Tjipto
Jurnal Penelitian Pendidikan Vol 34, No 1 (2017): April 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpp.v34i1.10909

Abstract

This research aims to develop learning materials based on a guided inquiry-based model and a PhET-assisted learning process which are valid, practical, and effective. The development of learning materials utilized a 4D model without dissemination. The developed learning materials were tested using one group pretest-posttest design at Grade 8, SMPN 3 Airmadidi, North Minahasa in Semester 1 the 2016/2017 Academic Year. Data collection were performed using validation, observation, written test, and questionnaire. The collected data were analyzed using descriptive quantitative and qualitative techniques. The results show that: (1) the validity of developed learning materials which include lesson plan, worksheet, student book, and assessment instrument is achieved; (2) practicality in terms of adherence to lesson plans categorized practical, student activities in learning have reflecting activities that correspond to the stage of guided inquiry-based learning, the difficulties encountered in learning activities that students have not been accustomed to follow guided inquiry-based learning method and use of PhET; (3) student’s responses are effective with respect to the developed learning materials used in class, indicating that the materials are effective for students in mastery learning in terms of cognitive, attitude, and skill aspects. Based on research findings and the corresponding analyses, the developed learning materials are appropriate in terms of validity, practicality, and effectiveness for using of science learning in class.
PENENTUAN CEPAT RAMBAT DAN DECAY TIME METEO-TSUNAMI AKIBAT ERUPSI VULKANIK HUNGA TONGA-HUNGA HA’APAI, TONGA 2022: Kata Kunci: HTHH Tonga, meteo-tsunami, travel time, decay time, near-field, far-field Tika, Ni Made Aprillia Sekar Manggar; Prastowo, Tjipto; Fahmi, Muhammad Nurul
Inovasi Fisika Indonesia Vol. 13 No. 2 (2024): Vol 13 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v13n2.p1-12

Abstract

Penelitian ini menganalisis kinematika perambatan gelombang tsunami lintas Samudera Pasifik akibat erupsi vulkanik Hunga Tonga–Hunga Ha’apai (HTHH), Tonga pada tanggal 15 Januari 2022 dalam perspektif kejadian serupa yang mungkin terjadi pada masa mendatang di Indonesia. Tujuan penelitian ini adalah menentukan kecepatan rambat meteo-tsunami dan decay time pada kasus tsunami HTHH, Tonga 2022. Berdasarkan tsunami waveforms yang direkam oleh stasiun pemantau dari berbagai lokasi mulai yang dekat (near-field ≤ 1300 km) sampai jauh (far-field > 1300 km), data arrival times dan/atau observed travel times untuk semua muka gelombang terekam dengan baik oleh stasiun pemantau. Komparasi dengan estimated travel times yang dihitung dengan pendekatan shallow water memberikan estimasi kecepatan meteo-tsunami dalam penelitian ini adalah (1110 ± 10) km/jam, setara dengan (308 ± 3) m/s, jauh lebih besar dari tipikal kecepatan tsunami konvensional sebesar 800 km/jam, setara dengan 220 m/s selama merambat dalam zona near-field. Decay time untuk kasus HTHH, Tonga 2022 ditentukan melalui grafik pelemahan amplitudo maksimum terhadap jarak dan waktu tempuh, di mana amplitudo maksimum meluruh cepat dalam zona near-field dan menurun secara gradual dalam zona far-field. Berdasarkan waktu tempuh untuk stasiun pemantau terjauh dari episenter, decay time kasus HTHH, Tonga 2022 ditemukan sebesar 570 menit yang setara dengan 9,5 jam. Kedua temuan dalam penelitian ini (kecepatan meteo-tsunami dan decay time) tidak berbeda signifikan dengan estimasi kecepatan meteo-tsunami berbasis simulasi model perambatan meteo-tsunami dan travel time dari temuan terdahulu yang relevan. Kata Kunci: HTHH Tonga, meteo-tsunami, travel time, decay time, near-field, far-field Abstract This study analyzes the kinematics of trans-Pacific tsunami propagation due to volcanic eruption of Hunga Tonga-Hunga Ha'apai (HTHH), Tonga on January 15, 2022, within perspectives of a similar event that may happen in the future in Indonesia. The aims of this research are to calculate the speed of meteo-tsunami and decay time for the 2022 HTHH, Tonga case. Based on tsunami waveforms recorded by monitoring stations at varying distances from near-fields (≤ 1300 km) to far-fields (>1300 km), the data for arrival times and/or observed travel times of leading wavefronts were well documented. In accordance with estimated travel times, calculated from shallow water approximation, the meteo-tsunami speed was found to be (1110 ± 10) km/h equivalent to (308 ± 3) m/s, significantly higher than that for a typical, conventional tsunami of 800 km/h equivalent to 220 m/s during propagation in the near-field zone. The decay time for the 2022 HTHH, Tonga was calculated using maximum tsunami amplitude attenuation with respect to distance and travel time, where the amplitude was observed to decay rapidly in the near-field and to decrease gradually in the far-field. Based on the farthest station, the decay time for the 2022 HTHH tsunami was found to be 570 minutes or 9.5 hours. The two findings in the current work (the meteo-tsunami speed and the corresponding decay time) are in good agreement with those derived from numerical solutions for tsunami modelling from previous studies. Keywords: HTHH Tonga, meteo-tsunami, travel time, decay time, near-field, far-field
ANALISIS DAN INTERPRETASI ANOMALI GRAVITASI UNTUK IDENTIFIKASI POTENSI SUMBER PANAS BUMI DI GUNUNG ARJUNO-WELIRANG: Kata Kunci: Gunung Arjuno-Welirang, potensi panas Bumi, anomali gravitasi, TOPEX, anomali residual Novianti, Eni; Prastowo, Tjipto; Realita, Arie
Inovasi Fisika Indonesia Vol. 13 No. 2 (2024): Vol 13 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v13n2.p13-24

Abstract

Abstrak Gunung Arjuno-Welirang menyimpan potensi sumber panas Bumi yang melimpah. Hal ini ditandai dengan eksistensi mata air panas Coban, Cangar dan Padusan sepanjang lereng kompleks Arjuno-Welirang serta emisi gas fumarol dan solfatara di sekitar puncak Welirang. Dalam konteks inilah, penelitian ini dilaksanakan untuk identifikasi sumber panas Bumi kompleks Arjuno-Welirang melalui analisis dan interpretasi pengukuran anomali gravitasi. Data penelitian diperoleh dari satelit TOPEX. Data enhancement dilakukan secara berjenjang melalui dekomposisi data CBA menjadi anomali residual dan anomali regional dengan bantuan filter upward continuation, teknik derivative (FHD dan SVD) untuk identifikasi dan interpretasi peta anomali yang lebih akurat, serta analisis spektrum daya sinyal anomali residual untuk estimasi kedalaman sumber panas Bumi. Hasil citra resolusi tinggi dalam bentuk peta kontur SVD berbasis anomali residual memberikan gambaran sebaran pola anomali rendah di sekitar puncak dan lereng Arjuno-Welirang dan Penanggungan, serta arah barat dan barat daya Arjuno-Welirang. Anomali rendah tersebut menunjukkan keberadaan fluida panas sebagai produk aktivitas sumber panas Bumi bawah permukaan. Analisis lebih lanjut dengan bantuan spektrum radiasi anomali residual memberikan estimasi kedalaman sumber panas Bumi Arjuno-Welirang adalah 1650 m di bawah permukaan. Identifikasi sumber panas Bumi khususnya potensi sumber panas Bumi Arjuno-Welirang adalah penting sebagai bagian dari kegiatan eksplorasi sumber panas Bumi nusantara untuk mencari sumber energi alternatif yang ramah lingkungan (green energy). Kata Kunci: Gunung Arjuno-Welirang, potensi panas Bumi, anomali gravitasi, TOPEX, anomali residual Abstract Mount Arjuno-Welirang is home for geothermal potential, characterized by the presence of hot springs such as Coban, Cangar, and Padusan along its slopes, as well as fumarole and solfatara gas emissions around the peak of Welirang. In this context, this research was conducted to identify the source in the Arjuno-Welirang through analysis and interpretation of gravity measurements. The data were collected from TOPEX satellite. Data enhancement was carried out through the CBA decomposition into residual and regional anomalies using an upward continuation filter. Derivative techniques (FHD and SVD) were employed for accurately identifying and interpretating anomaly maps, along with analysis of the power spectrum of residual anomaly signals to estimate the source depth. High-resolution image results in the form of SVD-based residual anomaly contour maps provided an overview of the distribution pattern of low anomalies around the peaks and slopes of Arjuno-Welirang and Penanggungan, as well as to the west and southwest directions. These low anomalies indicate the presence of hot fluids as a product of subsurface geothermal activities. A further analysis using the power spectrum of residual anomaly radiation estimated the depth of the Arjuno-Welirang geothermal source to be 1650 meters below the surface. Identification of the geothermal source, particularly the potential of the Arjuno-Welirang geothermal source, is crucial as part of geothermal exploration activities in Indonesia to search for environmentally friendly alternative energy (green energy). Keywords: Mount Arjuno-Welirang, geothermal potential, gravity anomaly, TOPEX, residual anomaly