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STUDI APLIKASI KERAMIK ZnBiCo SEBAGAI TERMISTOR NTC
Syarif, Dani Gustaman;
Henny, Henny;
Suhandi, Andi
MESIN Vol 8, No 1 (2006)
Publisher : Program Studi Teknik Mesin, Universitas Trisakti
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STUDY ON THE APPLICA TION OF ZnBiCo CERAMICS AS NTC THERMISTORS. A study onthe application ofZnO-Bi203-CoO (ZnBiCo) ceramicsfor NTC thermistors had been carried out. The aim ofthisstudywas tofind alternative NTCthermistors. The studywas done as follow. Powder ofZnO, CoO andBi203 with concentration of Bi203 of 0, 0.25, 0.5, and 0.75 mole % and of CoO of 2 mole % werehomogeneously mixed. The mixedpowder was pressed with pressure of3.9ton/cm2 into pellets and sinteredat HOCfC in airfor 1 hour. The sintered pellets were evaluated using x-ray diffraction (XRD), opticalmicroscope andSEM(Scanningelectron microscope). Resistivity-temperature characteristic (p-Tcurve) wasdetermined through measurement of resistivity at various temperatures from room temperature to WCfC.XRD andmicrostructure datashowed thatmostofCoOformed a solid solution withZnOmatrix while Bi203was segregated at grain boundaries as ZnO,24Bi203 second phase. It was known that the all ceramicsproducedin this studyhad the same structure i.e. hexagonal. It was known also that the addition ofBi203increased the average grain size of the ZnBiCo ceramics. Electrical data showed that Bi203 increased theroom temperature resistivity (ps^) and the thermistor constant (B) of the ZnBiCo ceramic thermistors. Thethermistor constant and sensitivity (a) of the thermistor ceramics in this study were relatively high (largerthan 200(fKfor Band larger than 2.2 (°K)~lfor a)andsuitableforcommercial application.
PENERAPAN MODEL SCIENCE CREATIVE LEARNING (SCL) FISIKA BERBASIS PROYEK UNTUK MENINGKATKAN HASIL BELAJAR KOGNITIF DAN KETERAMPILAN BERPIKIR KREATIF
Wibowo, F.C.;
Suhandi, A.
Jurnal Pendidikan IPA Indonesia Vol 2, No 1 (2013): April 2013
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)
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DOI: 10.15294/jpii.v2i1.2512
Tujuan studi ini adalah untuk mendapatkan gambaran tentang peningkatan hasil belajar kognitif dan keterampilan berpikir kreatif sebagai dampak penerapan model. Hasil penelitian menunjukkan bahwa setelah penerapan model pembelajaran sebagian besar hasil belajar dan keterampilan berpikir kreatif meningkat kategori sedang. Hal ini diindikasikan oleh rata-rata skor gain yang dinormalisasi <g> hasil belajar kognitif dan <g> keterampilan berpikir kreatif meningkat sebesar 0,44. Hasil-hasil ini menunjukkan bahwa model SCL fisika berbasis proyek merupakan salah satu model pembelajaran yang dapat meningkatkan hasil belajar kognitif dan keterampilan berpikir kreatif.àThis study propose to determine the increasing of concept masteryââ¬â¢s and creative thinking skillsââ¬â¢s students impact to application of learning model. The result showed that the application of learning model enhance the most of concept masteryââ¬â¢s and creative thinking skillsââ¬â¢s moderately category of medium. This is indicated by the score mean gain normalization <g> concept mastery and <g> of creative thinking skills is about 0,44. These results indicate that the SCL based learning is one of the most effective learning models to be used in order to rise concept masteryââ¬â¢s and creative thinking skillsââ¬â¢s.
PENGARUH PENERAPAN PEMBELAJARAN BERBASIS PENGALAMAN MENGGUNAKAN PERCOBAAN SECARA INKUIRI TERHADAP PENINGKATAN KETERAMPILAN PROSES SAINS SISWA SEKOLAH DASAR PADA PEMBELAJARAN IPA
Yusup, Meri;
Suhandi, Andi
EduHumaniora | Jurnal Pendidikan Dasar Kampus Cibiru Vol 8, No 2: Juli 2016
Publisher : Universitas Pendidikan Indonesia
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DOI: 10.17509/eh.v8i2.5144
Abstract: The effect of the application of experience-based learning to increase understanding and science process skills of elementary school students in learning science. This study aimed to determine the effect of the use of experience-based learning that uses inquiry and experimental trials of traditional (verification) in science teaching in elementary school to the improvement of Science Process Skills students on a simple plane material in class V. This study uses quasi-experimental. Based on the results of the N-gain calculation Science Process Skills for the experimental class of 0.44 with the category of Medium and the control grade of 0.08 with the low category.Keywords: Experience Based Learning, Science process skills, Science EducationAbstrak: Pengaruh penerapan pembelajaran berbasis pengalaman terhadap peningkatan kemampuan memahami dan keterampilan proses sains siswa sekolah dasar pada pembelajaran IPA. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan pembelajaran berbasis pengalaman yang menggunakan percobaan secara inkuiri maupun percobaan tradisional (verifikatif) dalam pembelajaran IPA di Sekolah Dasar (SD) terhadap peningkatan Keterampilan Proses Sains (KPS) siswa pada materi pesawat sederhana di kelas V. penelitian ini menggunakan kuasi eksperimen. Berdasarkan hasil perhitungan N-gain Keterampilan Proses Sains untuk kelas eksperimen sebesar 0,44 dengan katagori Sedang dan pada kelas kontrol sebesar 0,08 dengan katagori rendah.Kata Kunci : Pembelajaran Berbasis Pengalaman, Keterampilan proses Sains, IPA
PENERAPAN STRATEGI PREDICT, DISCUSS, EXPLAIN, OBSERVE, DISCUSS, EXPLAIN (PDEODE) PADA PEMBELAJARAN IPA SD UNTUK MENINGKATKAN PEMAHAMAN KONSEP DAN MENURUNKAN KUANTITAS SISWA YANG MISKONSEPSI PADA MATERI PERUBAHAN WUJUD BENDA DI KELAS V
Dewi, Suci Zakiah;
Suhandi, Andi
EduHumaniora | Jurnal Pendidikan Dasar Kampus Cibiru Vol 8, No 1: Januari 2016
Publisher : Universitas Pendidikan Indonesia
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DOI: 10.17509/eh.v8i1.5118
Abstract: Understanding of concepts in science learning is very important in order to avoid students misconceptions and is one of the requirements for success in learning science. the purpose of this study was to determine the extent of students' understanding of the concept and the ability to decrease the quantity of misconceptions by using learning strategies PDEODE at primary school level precisely in one of the Government Elementary School in the city of Bandung. The method used is quasi-experimental with pretest-posttest control group design. The process of learning happens in the classroom control with traditional learning in the classroom and experiment with strategies PDEODE. Learning takes place during the four meetings of each class and in each of the activities carried out are also observations about the enforceability of the learning activities as described in the steps in the lesson plan. The results showed an increased understanding of the concept as well as a decrease in the quantity of students' misconceptions after learning implemented. T test results showed that between ttabel predetermined with the calculation results tcount discovered show that thitung thitungttabel and means Ho rejected. Furthermore, students' responses to the use PDEODE strategy is positive. Students feel more involved in the learning process and thus deemed not to saturate a given learning can improve understanding of concepts and reconstruct his conception so in accordance with the scientific concept indeed.Keyword: PDEODE Strategy, Conceptual Understanding, Misconception Abstrak: Pemahaman konsep dalam pembelajaran sains merupakan hal yang sangat penting guna menghindari miskonsepsi pada siswa dan merupakan salah satu syarat dalam mencapai keberhasilan belajar sains. tujuan dari penelitian ini adalah untuk mengetahui sejauh mana kemampuan pemahaman konsep siswa dan penurunan kuantitas miskonsepsi dengan mengunakan strategi pembelajaran PDEODE di jenjang sekolah dasar tepatnya di salah satu Madrasah Ibtidaiyah di kota Bandung. Metode penelitian yang digunakan adalah kuasi eksperimen dengan control group pretest-postest design. Proses pembelajaran terjadi di kelas kontrol dengan pembelajaran tradisional dan di kelas eksperimen dengan strategi PDEODE. Pembelajaran berlangsung selama 4 kali pertemuan masing-masing kelas dan dalam setiap kegiatannya dilakukan juga observasi mengenai keterlaksanaan kegiatan pembelajaran seperti tertera dalam langkah-langkah di RPP. Hasil penelitian menunjukkan adanya peningkatan pemahaman konsep serta penurunan kuantitas siswa miskonsepsi setelah pembelajaran dilaksanakan. Hasil uji t menunjukkan bahwa antara ttabel yang telah ditentukan dengan hasil penghitungan thitung yang ditemukan menunjukkan bahwa thitungttabel dan artinya Ho ditolak. Selanjutnya tanggapan siswa terhadap penggunaan strategi PDEODE adalah positif. Siswa merasa lebih terlibat dalam proses pembelajaran dan dianggap tidak membuat jenuh sehingga pembelajaran yang diberikan mampu meningkatkan pemahaman konsep dan merekontruksi konsepsinya sehingga sesuai dengan konsep ilmiah sesungguhnya.Kata kunci: Strategi PDEODE, pemahaman konsep, miskonsepsi, perubahan wujud benda
PENGEMBANGAN PERANGKAT PERKULIAHAN EKSPERIMEN FISIKA UNTUK MENINGKATKAN KREATIVITAS MAHASISWA CALON GURU DALAM MENDESAIN KEGIATAN PRAKTIKUM FISIKA DI SMA
Wattimena, H. S.;
Suhandi, A.;
Setiawan, A.
Jurnal Pendidikan Fisika Indonesia Vol 10, No 2 (2014)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences
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DOI: 10.15294/jpfi.v10i2.3448
Penelitian ini bertujuan untuk mengembangkan perangkat perkuliahan eksperimen fisika yang dapat meningkatkan kreativitas mahasiswa calon guru dalam mendesain kegiatan praktikum fisika SMA. Mixed methods research melalui embedded experimental model dengan strategi embedded, digunakan sebagai metode penelitian sebagai tahap pengumpulan data kuantitatif dan kualitatif dalam satu waktu; yang melibatkan mahasiswa program studi Pendidikan Fisika salah satu LPTK di Maluku. Perangkat perkuliahan yang dikembangkan diadaptasikan dari pola pembelajaran kreatif yang disebut sebagai Aspek Keterampilan Berpikir Kreatif (AKBK); aktivitas mahasiswa dalam mendesain kegiatan praktikum diarahkan pada Indikator Kegiatan Dalam Bereksperimen (IKDB). Pemahaman konsep fisika mahasiswa diukur berdasarkan taksonomi Bloom revisi. Hasil penelitian menunjukkan, terjadi peningkatan AKBK mahasiswa untuk setiap IKDB pada kriteria sedang; serta peningkatan pemahaman konsep-konsep dasar fisika mahasiswa untuk indikator mencontohkan, mengklasifikasikan, dan menjelaskan pada kriteria sedang. Disimpulkan bahwa perangkat perkuliahan eksperimen fisika yang dikembangkan dapat meningkatkan kreativitas mahasiswa dalam mendesain kegiatan praktikum fisika berdasarkan cakupan materi yang terukur.ABSTRACTThis study aimed to develop the lectures instrument of physics experiment to improve the creativity of preservice teachers in designing a high school physics lab activities. Mixed methods research through the embedded experimental models with embedded strategy, was used as a method of research, a stage of quantitative and qualitative data collection at a time, involving students of Physical Education courses one LPTK in Maluku. The developed lectures instrument adapted from creative learning pattern was referred to as Creative Thinking Skills aspect (CTSA), while student activity in the design of practical activities were directed at Activity Indicator In Experiment (SIEI). Understanding the concept of physics students was measured based on the revised Bloom's taxonomy. The results showed an increase in students CTSA for each SIEI on the criteria of being; as well as an improve understanding of the basic concepts of physics students to cite, classify, and explain indicators. It was concluded that the developed lectures instrument of physics experiment can enhance student creativity in the design of physics experiment activities based on the coverage of the measured material.
PENERAPAN MODEL PEMBELAJARAN PEMBANGKIT ARGUMEN MENGGUNAKAN METODE SAINTIFIK UNTUK MENINGKATKAN KEMAMPUAN KOGNITIF DAN KETERAMPILAN BERARGUMENTASI SISWA
Siswanto, -;
Kaniawati, I.;
Suhandi, A.
Jurnal Pendidikan Fisika Indonesia Vol 10, No 2 (2014)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences
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DOI: 10.15294/jpfi.v10i2.3347
Penelitian ini dilakukan untuk memperoleh gambaran tentang perbedaan peningkatan kemampuan kognitif dan keterampilan berargumentasi siswa yang mendapatkan pembelajaran fisika dengan model pembangkit argumen menggunakan metode saintifik dan tanpa menggunakan metode saintifik, serta memperoleh gambaran mengenai hubungan antara keterampilan berargumentasi dengan kemampuan kognitif siswa yang mendapat pembelajaran dengan model pembangkit argumen menggunakan metode saintifik. Penelitian dilakukan menggunakan metode eksperimen semu dengan desain randomized control group pretest–posttest design. Populasinya adalah seluruh siswa kelas X MIA pada salah satu SMA Negeri di Kabupaten Pemalang. Sampel sebanyak dua kelas yang dipilih secara cluster random sampling. Hasil penelitian menunjukan bahwa terjadi peningkatan kemampuan kognitif dan keterampilan berargumentasi siswa di kedua kelas. Namun, besarnya peningkatan pada kelas eksperimen lebih signifikan dibanding kelas kontrol. Selain itu, terdapat hubungan yang kuat dan signifikan antara keterampilan berargumentasi dengan kemampuan kognitif siswa yang mendapat pembelajaran dengan model pembangkit argumen menggunakan metode saintifik.ABSTRACTThe purposes of this study were to determine the difference between the generate-an-argument instructional model using scientific method and without scientific method in improving student’s cognitive abilities and argumentation skills, and to determine the correlation between the argumentation skills and the cognitive abilities in the generate-an-argument instructional model using scientific method class. The study was conducted using a quasi-experimental with randomized control group pretest-posttest design. The population were all of students in X MIA grades on one of the senior high schools in Pemalang district. There were two samples that chosen at random cluster sampling. The results showed that there was an improving of student’s cognitive abilities and argumentation skills in two classes. But, in the experiment’s class there was more significantly improvement student’s cognitive abilities and argumentation skills than in control class. In addition, there was a strong and significant correlation between argumentation skills and cognitive abilities of students having lesson implementing the generate-an-argument instructional model using scientific method.
IMPACT OF LEARNING EARTH LITOSPHERE USING INTERACTIVE CONCEPTUAL INSTRUCTION ON LOGIC THINKING, CONCEPTUAL UNDERSTANDING, AND SPIRITUAL ASPECT EMBEDDING
Johan, H.;
Suhandi, A.;
Wulan, A. R.;
Sipriyadi, S.
Jurnal Pendidikan Fisika Indonesia Vol 14, No 1 (2018)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences
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DOI: 10.15294/jpfi.v14i1.8259
The aim of this study is to explore the impact of interactive-conceptual-instruction with visualization on logic thinking, conceptual understanding and spiritual aspect embedding. The sampling technique used in this research was convenience sampling. This research used mixed methods with embedded experiment design. The data of logic thinking and conceptual understanding was collected through pre-test and post-test. The questionnaires were used to collect data on spiritual attitudes and were analyzed qualitatively. The results showed that logic thinking-ability improves from no logic thinking to inductive-deductive logic thinking. The improvement of logic thinking abilities was in the medium category. Understanding the concept shifted from incompetent to conceptual understanding with improvement, in the medium category. The questionnaires analysis showed that the students got spiritual values related to the awareness of God believing behind the natural phenomena that impact on their spiritual attitudes. This study also tried to apply the results of pure science research to support learning activities. Based on the result of the research, it can be concluded that the learning process using interactive conceptual with visualization can improve logic thinking, conceptual comprehension, and spiritual attitude embeding.
A Four-Tier Diagnostic Test to Assess Pre-service Elementary Teachersâ on Electricity Magnetism
Hermita, Neni;
Suhandi, Andi;
Syaodih, Ernawulan;
Samsudin, Achmad
Proceedings of the 1st UR International Conference on Educational Sciences Vol 1, No 1 (2017)
Publisher : Proceedings of the 1st UR International Conference on Educational Sciences
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This article reports on the calculation procedure which is to recover and to device a four-tier test diagnostic instrument, which has not been defined in the literature. It is an enhanced arrangement of the two-tier test substances. As in two-tier tests, its answer and reason tiers extent pre-service elementary teachersâ contented knowledge and clarifying knowledge, separately. The two added tiers quantity the level of confidence of pre-service elementary teacher in the accurateness of their selected choices for the answer and reason tiers separately. The four-tier diagnostic test was focussed on electricity magnetism concept. It was measured to 40 pre-service elementary teachers later. They were correctly trained on the preceding topics. The substantial corporate of the respondents was established to have an unfortunate kind and misconceptions of the subjects tested. We have already described that the test able to investigate and categorize students into student conception of electricity magnetism concepts. Research result with four tier tests showed scientific conception 5%, which was likely to have misconceptions 44.89%, and the students were lack of knowledge the concept of 46.52%, and had an error amounted to 3.59%. The pre-service elementary teachers inclined to be unwell aware among what they diagnosed and what they do not diagnosed. Kindsof question tested was connected by enhanced percentage of pre-service teacher substantial accurate responses, established buoyancy and enhanced perception calculation. 23 truthful misconceptions were predictable. It might be determined that a Four-Tier Diagnostic Test which has previously been established be able to assess pre-service elementary teachersâ conception on electricity magnetism.
PENERAPAN MODEL SCIENCE CREATIVE LEARNING (SCL) FISIKA BERBASIS PROYEK UNTUK MENINGKATKAN HASIL BELAJAR KOGNITIF DAN KETERAMPILAN BERPIKIR KREATIF
Wibowo, F.C.;
Suhandi, A.
Jurnal Pendidikan IPA Indonesia Vol 2, No 1 (2013): April 2013
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)
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DOI: 10.15294/jpii.v2i1.2512
Tujuan studi ini adalah untuk mendapatkan gambaran tentang peningkatan hasil belajar kognitif dan keterampilan berpikir kreatif sebagai dampak penerapan model. Hasil penelitian menunjukkan bahwa setelah penerapan model pembelajaran sebagian besar hasil belajar dan keterampilan berpikir kreatif meningkat kategori sedang. Hal ini diindikasikan oleh rata-rata skor gain yang dinormalisasi hasil belajar kognitif dan keterampilan berpikir kreatif meningkat sebesar 0,44. Hasil-hasil ini menunjukkan bahwa model SCL fisika berbasis proyek merupakan salah satu model pembelajaran yang dapat meningkatkan hasil belajar kognitif dan keterampilan berpikir kreatif. This study propose to determine the increasing of concept mastery’s and creative thinking skills’s students impact to application of learning model. The result showed that the application of learning model enhance the most of concept mastery’s and creative thinking skills’s moderately category of medium. This is indicated by the score mean gain normalization concept mastery and of creative thinking skills is about 0,44. These results indicate that the SCL based learning is one of the most effective learning models to be used in order to rise concept mastery’s and creative thinking skills’s.
Design of Experimental Problem Solving-Based Learning Program to Improve Mental Model and to Enhance Mental-Modeling Ability
Supriyatman, S.;
Suhandi, A.;
Rusdiana, D.;
Samsudin, A.;
Wibowo, F. C.;
Mansyur, J.
Jurnal Pendidikan Fisika Indonesia Vol 14, No 2 (2018)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences
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DOI: 10.15294/jpfi.v14i2.6279
Research on developing experimental problem solving-based learning program to overcome the low mental model (MM) and mental-modeling abilities (MMA) physics teacher candidate in one of the college teachers in Palu have been conducted. Mental model construction is the “core†of meaningful learning and along with MMA (modeling) become a keyword to understand the key concepts in the science learning. The development of this learning program was using R & D method. Development process from requirement analysis phase until implementation process has already been described using 4D model: define, design, develop and disseminate. The subject matter of this research was the Basic Physics II course on the topic of electricity and magnetism. Based on the data analysis and findings at each stage of development, it is concluded that the learning program stages which have improved MM and also enhanced the MMA of physics teacher candidates consist of learning orientation phase; orientation to the problem; pre-experimental brainstorming; experiment; evaluation; as well as the phase of reinforcement and follow-up.Penelitian tentang pengembangan program berbasis eksperimen problem solving untuk mengatasi rendahnya mental model (MM) dan mental-modeling abilities (MMA) calon guru fisika di salah satu guru perguruan tinggi di Palu telah dilakukan. Konstruksi model mental adalah inti dari pembelajaran yang bermakna dan bersama dengan MMA (pemodelan) menjadi kata kunci untuk memahami konsep-konsep kunci dalam sains. Pengembangan program pembelajaran ini menggunakan metode R & D. Proses pengembangan dari tahap analisis kebutuhan hingga proses implementasi dijelaskan menggunakan model 4D: define, design, develop, disseminate. Materi yang dikaji dalam penelitian ini adalah mata kuliah fisika dasar 2 tentang topik listrik dan magnet. Berdasarkan analisis data dan temuan pada setiap tahap perkembangan, disimpulkan bahwa tahapan program pembelajaran yang telah memperbaiki MM dan juga meningkatkan MMA calon guru fisika terdiri dari fase orientasi pembelajaran; orientasi pada masalah; pra-brainstorming eksperimental; percobaan; evaluasi; serta fase penguatan dan tindak lanjut.