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All Journal Jurnal Pendidikan Fisika Indonesia Jurnal Pendidikan IPA Indonesia Indonesian Journal of Mathematics and Natural Sciences Abdimas JURNAL FISIKA Lembaran Ilmu Kependidikan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Sainteknol : Jurnal Sains dan Teknologi Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Educational Management INKUIRI : Jurnal Pendidikan IPA UPEJ Unnes Physics Education Journal Journal of Innovative Science Education Unnes Journal of Mathematics Education Research Journal of Primary Education Journal of Creativity Student Abdimas Toddopuli: Jurnal Pengabdian Pada Masyarakat Physics Communication Jurnal Penelitian Pendidikan Indonesia Journal of Vocational and Career Education Jurnal Sains dan Edukasi Sains
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Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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PENGAYAAN MATERI PRAKTIKUM FISIKA DASAR YANG DILOMBAKAN DI OLIMPIADE SAINS NASIONAL BAGI GURU-GURU SMU DI JAWA TENGAH Supriyadi, Supriyadi; Hindarto, Nathan; Khumaedi, Khumaedi; Yulianto, Agus; Susanto, Hadi
Rekayasa : Jurnal Penerapan Teknologi dan Pembelajaran Vol 11, No 1 (2013): Juli 2013
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v11i1.10337

Abstract

Kegiatan pengabdian ini dilatarbelakangi oleh fakta di lapangan yang menunjukkan bahwa berdasarkan daftar peserta olimpiade sains nasional bidang fisika 2011 yang dirilis oleh Diknas terlihat bahwa komposisi asal peserta dari Jawa Tengah adalah SMAN 1 Purwokerto, SMAN 1 Brebes, SMAN 1 Ungaran, SMAN BBS Sragen, SMAN 1 Pekalongan, SMA Kolose Loyola Semarang, SMAN 1 Surakarta, dan SMA Regina Pacis Surakarta. Tujuan kegiatan ini untuk membekali materi praktikum bagi guru físika di luar SMA yang disebutkan di atas sehingga mempunyai pengalaman mempersiapkan siswanya untuk mengikuti OSN dari tingkat awal. Hasil kegiatan menunjukkan bahwa pemahaman peserta tentang materi praktikum yang diujikan OSN seperti bandul fisis, dan momen inersia silinder, osilasi tabung berisi air, 80 % dapat memahami konsep dan teori yang terkait dengan praktium tersebut. Untuk rumusan bagaimana praktikum bandul fisis dan momen inersia silinder dilaksanakan, 90 % dapat menjelasakan dengan baik, dan hanya 10 % peserta yang dapat menjelaskan tahapan praktikum osilasi tabung berisi air.
Mathematical Problem Solving Ability on Problem Based Learning Assisted by GeoGebra in Primary School Kurniawati, Ike; Joko Raharjo, Tri; Khumaedi, Khumaedi
Educational Management Article In Press April 2021
Publisher : Educational Management

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Abstract

Training students through problem solving in mathematics learning is expected to be able to equip them to solve existing problems easily in everyday life. This study aims to analyse the use of Problem Based Learning (PBL) model assisted by GeoGebra in improving students' mathematical problem solving abilities. The method of this study was quantitative experimental type using Pre-Test Post-Test in one group. The samples of the study were students of VA class from SDN Petompon 01 and students of VA class from SDN Sampangan 02 with a total of 64 students. The data were obtained through the question sheet of problem solving abilities. Then, the data were analysed using N-gain. After carrying out learning using PBL models assisted by GeoGebra, the final results showed that mathematical problem solving ability from both groups of students experienced an average increase of 0.55 with a medium category. Therefore, students need to get more learning and practice in solving the questions using problem solving. Because problem solving abilities will be more optimal if the students are given the opportunity to learn with the real world directly.
ANALISIS KEMAMPUAN LITERASI SAINS DITINJAU DARI KEBIASAAN MEMBACA, MOTIVASI BELAJAR DAN PRESTASI BELAJAR Yanti, Rosmalah; Prihatin, Titi; Khumaedi, Khumaedi
INKUIRI: Jurnal Pendidikan IPA Vol 9, No 2 (2020): INKUIRI: Jurnal Pendidikan IPA
Publisher : Magister Pendidikan Sains Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/inkuiri.v9i2.27422

Abstract

Penelitian  ini bertujuan untuk menganalisis (1) pengaruh langsung kebiasaan membaca terhadap motivasi belajar; (2) pengaruh langsung kebiasaan membaca terhadap prestasi belajar; (3) pengaruh langsung motivasi belajar terhadap prestasi belajar; (4) pengaruh langsung kebiasaan membaca terhadap kemampuan literasi sains; (5) pengaruh langsung motivasi belajar terhadap kemampuan literasi sains; (6) pengaruh langsung prestasi belajar terhadap kemampuan literasi sains; (7) pengaruh tidak langsung kebiasaan membaca terhadap prestasi belajar; (8) pengaruh tidak langsung kebiasaan membaca terhadap kemampuan literasi sains; dan (9) pengaruh tidak langsung motivasi belajar terhadap kemampuan literasi sains. Metode penelitian ini adalah Ex Post Facto. Sampel berjumlah 112 siswa kelas VII di Kabupaten Luwu. Pengambilan sampel menggunakan cluster random sampling. Teknik analisis data menggunakan analisis jalur. Hasil penelitian adalah sebagai berikut 1) kebiasaan membaca berpengaruh secara langsung sebesar 0,16% terhadap motivasi belajar, 9,67% terhadap prestasi belajar, dan 3,6% terhadap kemampuan literasi sains; 2) motivasi belajar dapat memberikan pengaruh langsung sebesar 1,58% terhadap prestasi belajar, dan 3) prestasi belajar memberi pengaruh langsung terhadap kemampuan literasi sains sebesar 7,12%. Pengaruh tidak langsung kebiasaan membaca sebesar 10,17% terhadap prestasi belajar melalui motivasi belajar, serta berpengaruh terhadap kemampuan literasi sains melalui motivasi belajar sebesar 3,73%. Motivasi belajar tidak berpengaruh terhadap kemampuan literasi sains siswa. Kemampuan literasi sains siswa secara dominan dipengaruhi oleh kebiasaan membaca sehingga sebaiknya siswa dilatih dan dibiasakan mengerjakan soal-soal yang menguji dan dapat meningkatkan kemampuan literasi sains.This study aims to analyze (1) the direct influence of reading habits on learning motivation; (2) direct influence of reading habits on learning achievement; (3) the direct influence of learning motivation on learning achievement; (4) direct influence of reading habits on scientific literacy skills; (5) the direct effect of learning motivation on scientific literacy ability; (6) direct influence of learning achievement on scientific literacy ability; (7) the indirect effect of reading habits on learning achievement; (8) the indirect effect of reading habits on scientific literacy skills; and (9) the indirect effect of learning motivation on scientific literacy ability. This research method is Ex Post Facto. The sample is 112 class VII students in Luwu Regency. Sampling used cluster random sampling. The data analysis technique used path analysis. The results of the study are as follows: 1) reading habits have a direct effect of 0.16% on learning motivation, 9.67% on learning achievement, and 3.6% on scientific literacy skills; 2) learning motivation can have a direct effect of 1.58% on learning achievement, and 3) learning achievement has a direct influence on scientific literacy skills of 7.12%. The indirect effect of reading habits is 10.17% on learning achievement through learning motivation, and the effect on scientific literacy skills through learning motivation is 3.73%. Learning motivation has no effect on students' scientific literacy skills. Students' scientific literacy ability is dominantly influenced by reading habits so that students should be trained and accustomed to working on questions that test and can improve scientific literacy skills.
Mathematical Problem Solving Ability on Problem Based Learning Assisted by GeoGebra in Primary School Kurniawati, Ike; Joko Raharjo, Tri; Khumaedi, Khumaedi
Educational Management Vol 10 No 1 (2021): April 2021
Publisher : Educational Management

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

Abstract

Training students through problem solving in mathematics learning is expected to be able to equip them to solve existing problems easily in everyday life. This study aims to analyse the use of Problem Based Learning (PBL) model assisted by GeoGebra in improving students' mathematical problem solving abilities. The method of this study was quantitative experimental type using Pre-Test Post-Test in one group. The samples of the study were students of VA class from SDN Petompon 01 and students of VA class from SDN Sampangan 02 with a total of 64 students. The data were obtained through the question sheet of problem solving abilities. Then, the data were analysed using N-gain. After carrying out learning using PBL models assisted by GeoGebra, the final results showed that mathematical problem solving ability from both groups of students experienced an average increase of 0.55 with a medium category. Therefore, students need to get more learning and practice in solving the questions using problem solving. Because problem solving abilities will be more optimal if the students are given the opportunity to learn with the real world directly.
Contextual Learning By Using Batik Semarangan for Improving Students’ Learning Achievement Hartanti, Rizka Silviana; Yulianto, Agus; Khumaedi, Khumaedi
Physics Communication Vol 4, No 2 (2020): August 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v4i2.31627

Abstract

This Research is aimed for knowing, (1) the implementation of contextual learning by using Batik Semarangan for physics material especially temperature and heat, (2) the improvement of students’ learning achievements after the application of contextual learning by using Batik Semarangan, and (3) the students’ responses after being given contextual learning by using Batik Semarangan. This research mix methods, namely quantitative and qualitative. This research was conducted in two classed at SMK Walisongo Semarang for student class X TKJ Telkom 1 as experimental class and X TKJ Telkom 2 as control class. The identification of local potential of Batik Semarangan was carried out by using interview and observation technique which were then analyzed qualitatively and the result was substituted to physics material, namely temperature and heat.  Furthermore, learning achievements were assessed from sides of cognitive, affective and psychomotor.  The result showed that contextual learning by using Batik Semarangan was effective for improving cognitive learning achievements as proved by experimental class having value of 0.79 which was higher than the control class of 0.57. In addition, the result showed that contextual learning by using Batik Semarangan was effective in improving effective learning achievements as proved by the experimental class average of 86.55 which was higher than the control class of 76.73. The result also showed that contextual learning by using Batik Semarangan was effective in improving psychomotor learning achievements as proved by the experiment class average score 33.3 higher than control class 25.4. The implementation of contextual learning by using Batik Semarangan got a positive responses by students because it made them easier to understand concepts, to be more skilled, and increased students’ interest in the learning process. Based on the result, it can be concluded that contextual learning with the use of Batik Semarangan can be applied to study temperature and heat material in classroom. Contextual learning with the use of Batik Semarangan can improve students’ learning achievement. Contextual learning with the use of Batik Semarangan got a good response by students.
PENGAYAAN MATERI PRAKTIKUM FISIKA DASAR YANG DILOMBAKAN DI OLIMPIADE SAINS NASIONAL BAGI GURU-GURU SMU DI JAWA TENGAH Supriyadi, Supriyadi; Hindarto, Nathan; Khumaedi, Khumaedi; Yulianto, Agus; Susanto, Hadi
Rekayasa : Jurnal Penerapan Teknologi dan Pembelajaran Vol 11, No 1 (2013): Juli 2013
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v11i1.10337

Abstract

Kegiatan pengabdian ini dilatarbelakangi oleh fakta di lapangan yang menunjukkan bahwa berdasarkan daftar peserta olimpiade sains nasional bidang fisika 2011 yang dirilis oleh Diknas terlihat bahwa komposisi asal peserta dari Jawa Tengah adalah SMAN 1 Purwokerto, SMAN 1 Brebes, SMAN 1 Ungaran, SMAN BBS Sragen, SMAN 1 Pekalongan, SMA Kolose Loyola Semarang, SMAN 1 Surakarta, dan SMA Regina Pacis Surakarta. Tujuan kegiatan ini untuk membekali materi praktikum bagi guru físika di luar SMA yang disebutkan di atas sehingga mempunyai pengalaman mempersiapkan siswanya untuk mengikuti OSN dari tingkat awal. Hasil kegiatan menunjukkan bahwa pemahaman peserta tentang materi praktikum yang diujikan OSN seperti bandul fisis, dan momen inersia silinder, osilasi tabung berisi air, 80 % dapat memahami konsep dan teori yang terkait dengan praktium tersebut. Untuk rumusan bagaimana praktikum bandul fisis dan momen inersia silinder dilaksanakan, 90 % dapat menjelasakan dengan baik, dan hanya 10 % peserta yang dapat menjelaskan tahapan praktikum osilasi tabung berisi air.
Identifikasi Panasbumi Krakal dengan Menggunakan Metode Geomagnetik sebagai Informasi Pengembangan dan Pembangunan Lanjutan Daerah Berpotensi Chaerunnisah, Lela Fahmi; Santoso, Ivan Hadi; Sukmaya, Fajar; Saputro, Eko; Winahyu, Diah Ika; Khumaedi, Khumaedi
Journal of Creativity Student Vol 1, No 2 (2016): July 2016
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jcs.v1i2.7797

Abstract

Potensi panas bumi Krakal terletak di Kabupaten Kebumen, Jawa Tengah. Fenomena panas bumi di daerah ini ditunjukkan dengan adanya mata air hangat yang terletak di Desa Krakal, Kecamatan Alian, Kabupaten Kebumen. Untuk   memanfaatkan   potensi   panas   bumi   suatu   area   dibutuhkan   suatu   proses   penelitian   yang   bertujuan mengidentifikasi sistem panas buminya. Metode geomagnetik merupakan salah satu metode geofisika yang sering digunakan untuk survei pendahuluan pada eksplorasi panas bumi. Pengukuran geomagnetik dilakukan dengan menggunakan alat Proton Precession Magnetometer (PPM), Global Positioning Sistem (GPS), kompas geologi, log book dan meteran. Dari pengukuran di lapangan diperoleh data intensitas medan magnet total. Pengukuran intensitas medan magnet total di sekitar Pemandian Air Panas (PAP) Krakal dilakukan di titik-titik pengukuran sebagai titik-titik sampel pengambilan data geomagnetik. Titik-titik sampel pengambilan data geomagnetik dianggap mewakili seluruh populasi yaitu batuan bawah permukaan di daerah penelitian. Analisis utama terhadap data penelitian adalah anomali magnetik di sekitar Pemandian Air Panas (PAP) Krakal. Selanjutnya data anomali diinterpretasikan dengan pemodelan untuk mendapatkan struktur batuan di bawah permukaan bumi. Hasil pengolahan dan interpretasi data menunjukkan daerah penelitian termasuk dalam kelompok anomali magnetik sedang berkisar antara -120 nT  sampai 80 nT. Nilai negatif dari anomali magnetik mencerminkan efek dimineralisasi batuan sebagai akibat adanya zona temperatur tinggi, daerah ini ditafsirkan sebagai daerah prospek panas bumi.
Identifikasi Mineral Mangan Menggunakan Metode Polarisasi Terinduksi di Desa Pucung Kecamatan Eromoko Kabupaten Wonogiri Arum Setiarini; Suharto Linuwih; Khumaedi Khumaedi
Dinamika Rekayasa Vol 14, No 2 (2018): Jurnal Ilmiah Dinamika Rekayasa - Agustus 2018
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2018.14.2.203

Abstract

Indonesia merupakan salah satu negara di dunia yang kaya akan sumber daya mineral logam. Pegunungan Selatan Jawa Timur sampai Jawa Barat merupakan daerah yang berpotensi sebagai tempat pembentukan bahan galian mineral. Penelitian ini bertujuan untuk identifikasi mineral mangan di Desa Pucung Kecamatan Eromoko Kabupaten Wonogiri. Metode yang digunakan menggunakan metode polarisasi terinduksi. Pengambilan data dilakukan menggunakan alat Syscal dengan konfigurasi dipole-dipole. Pengukuran dilakukan pada 2 lintasan dengan panjang lintasan 150 meter dan spasi eletroda 10 meter. Struktur bawah permukaan di daerah penelitian berdasarkan nilai resistivitas diindikasikan dari batulanau, batupasir tufan, batugamping napalan-tufan, dan batugamping. Mineral mangan diduga berasosiasi dengan batugamping mempunyai nilai resistivitas >10 Ωm dan nilai chargeabilitas >20 msec.
PENGEMBANGAN PERANGKAT PEMBELAJARAN EKSPERIMEN ELEKTRONIKA DIGITAL SEBAGAI UPAYA MENUMBUHKAN SIKAP KREATIF CALON GURU Noor Sani, Triyan Dewi; Hindarto, Nathan; -, Khumaedi
Lembaran Ilmu Kependidikan Vol 41, No 1 (2012)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/lik.v41i1.2224

Abstract

Eksperimen Elektronika Digital diharapkan mampu menjadi salah satu alat untuk meningkatkan kreativitas, akan tetapi perangkat pembelajarannya belum menunjang. Hal tersebut yang mendorong penelitian ini dilakukan. Penelitian ini dilakukan di dua tempat yaitu lokasi A dan lokasi B dengan metode RnD (Research and Development). Penelitian ini merupakan penelitian pengembangan untuk mengembangkan perangkat pembelajaran berupa silabus, satuan acara pembelajaran, pre-pos tes dan petunjuk eksperimen dalam mata kuliah eksperimen elektronika digital. Penelitian ini dilakukan melalui beberapa tahapan, antara lain tahap pembuatan desain, validasi desain, revisi desain, ujicoba produk, revisi produk, ujicoba pemakaian, revisi, analisis. Desain divalidasi oleh dua ahli dan layak digunakan. Hasil penelitian menunjukkan bahwa sikap kreatif mengalami kenaikan sebesar 53% di lokasi A dan di lokasi B meningkat 40%. Peningkatan kemampuan kognitif mahasiswa lokasi A meningkat 64% pada perlakuan I dan 74% pada perlakuan 2. Kemampuan kognitif mahasiswa lokasi B meningkat 39% dan 58%. Pengembangan perangkat pembelajaran dapat meningkatkan kemampuan kognitif dan sikap kreatif mahasiswa calon guru. Digital Electronics Experiments is expected to be one of the tools to enhance creativity, but the lesson has not been supportive. This is an encouraging study. The observation is done in two places. They are location A and location B. The observation uses the RnD (Research and Development) method. This is the development observation in order to develop the learning tools as syllabus, learning program unit, pre-post test and experiment guidance in subject study of digital electronic experiment. This observation is done with some step, they are design making, design validation, design revision, product trial, product revision, usage trial, revision, analysis. The design is validated by two experts and properly used criteria. The observation result shows that the creativity is increasing 53% in location A and in location B is increasing 40%. The increasing 64% and 74%. The students’ cognition ability in location B is increasing 39% in trial I and 58% in trial II. The development of the learning tools are able to increase the cognition ability and the creativity of the students as teachers candidate.
Karakterisasi Serbuk Forsterit Produk Sintesis Metode Ultrasonik Berbahan Baku Silika dari Pasir Parang Kusumo Nurbaiti, Upik; Arofah, Sitta Khusniati; Khumaedi, Khumaedi
Jurnal Fisika Vol 9, No 2 (2019)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jf.v9i2.24422

Abstract

Serbuk forsterit telah berhasil disintesis dari serbuk magnesium oksida (MgO) dan serbuk silika-amorf (SiO2) dengan metode ultrasonik, diikuti dengan kalsinasi pada 950 °C. Serbuk silica-amorf diproduksi dari proses pemurnian pasir alam lokal. Analisis gugus serbuk forsterit dilakukan dengan spektroskopi FTIR, analisis fasa digunakan pola defraksi XRD, dan analisis morfologi digunakan citra SEM. Hasil menunjukkan bahwa serbuk sampel terdiri dari fasa forsterit (Mg2SiO4), periclase (MgO), protoenstati (MgSiO3) dan kristobalit (SiO2). Diperoleh prosentase berat fasa serbuk sampel yang didominasi oleh forsterit (~60 wt%) sehingga dapat diklaim bahwa forsterit masih menjadi fasa utama sedangkan periklas dan cristobalit merupakan fasa minor.
Co-Authors - Supliyadi - Sutikno A Hendrawati, A A. Pradana, A. A. Rusilowati Agus Yulianto Ahmad Qosim, Ahmad Al Qodri, Muhammad Wakhid Ani Rusilowati Arini, Affita Nur Arofah, Sitta Khusniati Arum Setiarini Chaerunnisah, Lela Fahmi Chaerunnisah, Lela Fahmi D Yulianti, D Duwi Nuvitalia DWI YULIANTI Eko Saputro, Eko Ernawati Saptaningrum Fauzia, Annisa Rahma Fiandralekha Fiandralekha, Fiandralekha Fianti Fianti, Fianti FV Daraninggar Hadi Susanto Hadromi - Hafidzah, Hafidzah Haji, Muhammad Ismail Hardi Suyitno Hartono Hartono I. K. Setiawati Ikhbar Nur Jiwanto, Ikhbar Nur Ikramullah, Muh. Chaerul Irmayani Irmayani Juhrani, Juhrani Kurniawati, Ike Lestari, Annisa Faurina Lurinda, Nadia Wahyu M Yusuf M. Sarkowi, M. M. Taufiq M. Yusuf Muchsin Muchsin MUHAMMAD AGUS SUPRAYUDI Muzakkir Muzakkir N. Hindarto N. Millah Nathan Hindarto Nisa, Narita Ainun Nur Qudus Nurul Fuady Adhalia H P Dwijananti P. Dwijanant P. Kurnianto P. R. Nilasari Pertiwi, Anisa Yuni Purnami, Erni Sri Putriani, A. Ika R S Wulandari, R S R.N Panca, R.N Rahmawati, Himmatul Rifaldy Atlant Tungga Rizka Silviana Hartanti, Rizka Silviana Rohana, Ilma Nor S Fauziyah, S S Linuwih, S S. Imam, S. S. Supriyadi, S. S.E. Sukiswo Saerozi Saerozi, Saerozi Santoso, Ivan Hadi Santoso, Ivan Hadi Siti Khanafiyah Sri Mulyani Endang Susilowati, Sri Mulyani Endang Susilowati Sugianto Sugianto Suharto Linuwih Sukiswo Supeni Edie, Sukiswo Supeni Sukmaya, Fajar Sukmaya, Fajar Sunyoto Eko Nugroho, Sunyoto Eko Supriyadi - Supriyadi Supriyadi Syam, Nur Azisah Taufika Damayanti Titi Prihatin Tri Joko Raharjo Triyan Dewi Noor Sani Upik Nurbaiti Veithzal Rivai Zainal Widayati, Niken Tri Winahyu, Diah Ika Winahyu, Diah Ika Yanti, Rosmalah