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PEMBUATAN SET EKSPERIMEN GERAK JATUH BEBAS BERBASIS MIKROKONTROLER DENGAN TAMPILAN PC Dasriyani, Yohanna; Hufri, Hufri; Yohandri, Yohandri
Sainstek : Jurnal Sains dan Teknologi Vol 6, No 1 (2014)
Publisher : IAIN Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.064 KB) | DOI: 10.31958/js.v6i1.107

Abstract

Experiment of free fall motion is one of phenomena in physic. Parameters of free fall motion still measured by stopwatch and meter. The purpose of research is development of free fall motion experiment set based on microcontroller with personal computer display. This instrument have highest precision and accuration. Average of measured result is 9,821 ± 0,025 with average of precicion relative is 98,3% and average accuration is 0,992.Key words: free fall motion, microcontroller, pc 
PEMBUATAN SISTEM PENENTUAN KOEFISIEN GESEK STATIS BENDA PADA BIDANG MIRING SECARA DIGITAL BERBASIS MIKROKONTROLER Fitri, Maisa; Hufri, Hufri; Yohandri, Yohandri
Sainstek : Jurnal Sains dan Teknologi Vol 6, No 2 (2014)
Publisher : IAIN Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.81 KB) | DOI: 10.31958/js.v6i2.113

Abstract

The purpose of this research was to design a system of determination of the static friction coefficient of the object on inclined plane digitally. The purpose of this research is to explain the performance specifications, accuracy and precision of the system. There were three main results of this research. Firstly, the system was designed with the surface of the slip object size 8,7 x15 cm and glide plane 9 x 100 cm. Secondly, the average of accuracy relative accelerometer sensor was 95,58%. Thirdly, average precision was 0,977.Keywords: Static friction coefficient, accelerometer, tilt sensor
PELATIHAN PENGEMBANGAN MEDIA INTERAKTIF BERBASISKAN KONTEKSTUAL PADA GURU-GURU SMP LUBUK SIKAPING Hufri, Hufri; Dwiridal, Letmi; Sari, Silvi Yulia
GERVASI: Jurnal Pengabdian kepada Masyarakat Vol 4, No 1 (2020): GERVASI: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM IKIP PGRI Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31571/gervasi.v4i1.1699

Abstract

Kegiatan PKM ini bertujuan untuk meningkatkan kompetensi guru-guru SMP Lubuk Sikaping dalam mengembangkan media interaktif berbasis kontekstual. Metode yang digunakan terdiri dari beberapa tahap yaitu tahap observasi, persiapan, pelaksanaan, monitoring. Hasil analisis data dari pretest dan postest, disimpulkan bahwa kegiatan PKM ini telah dapat meningkatkan kemampuan guru-guru IPA SMP Lubuk Sikaping dalam mengembangkan media pembelajaran interaktif, sehingga dapat meningkatkan kualitas pembelajaran. Berdasarkan angket yang diberikan pada akhir kegiatan pelatihan, diperoleh hasil bahwa peserta menyatakan kegiatan ini sangat bermanfaat dan berkaitan dengan pembelajaran di sekolah
Peningkatan Kompetensi Guru-Guru SMP 33 Solok Selatan Melalui Pelatihan Pengembangan Bahan Ajar Kontekstual Berdasarkan Pendekatan Saintifik Hufri, Hufri; Dwiridal, Letmi; Amir, Harman
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 4 No 2 (2021): Volume 4 Nomor 2 Tahun 2021
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v4i2.14316

Abstract

The teacher realizes that learning requires students to be active in building their knowledge, and the teacher acts more as a facilitator and motivator. As a facilitator and motivator in learning activities, teachers are required to always improve their ability to prepare, implement and evaluate learning. The low ability of teachers to develop contextual teaching materials based on a scientific approach, even not infrequently the teachers feel they have not understood it to be one of the obstacles faced by teachers in improving the quality of learning. This training activity aims to provide knowledge about contextual learning, scientific approaches and the development of teaching materials, and conduct discussions and mentoring the development of contextual teaching materials based on a scientific approach to the teachers of SMPN 33 Solok Selatan. The activities carried out consisted of, (1) Providing knowledge about: (a). Contextual learning, (b) Scientific approach, (c) Development of teaching materials, (2) Guiding teachers for the manufacture of contextual teaching materials (LKPD / LKS) based on a scientific approach. The instrument used was a test of understanding of the material and questionnaire responses of trainees. The data analysis technique used is paired t test and percentage analysis. Based on the analysis of the results of the evaluation conducted it can be concluded, the training carried out has been able to improve the competence of teachers in developing contextual teaching materials based on a scientific approach, the training material provided can increase teacher competencies in developing teaching materials
Validasi Modul Elektronika Dasar Mengintegrasikan Creative Thinking Pada Materi Rangkaian Dioda dan Aplikasinya Triani, Frima; Hufri, Hufri
Jurnal Penelitian Pembelajaran Fisika Vol 6, No 2 (2020)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.52 KB) | DOI: 10.24036/jppf.v6i2.110852

Abstract

The low level of creative thinking of students in Indonesia is something that must be of concern, especially for the world of education. To emphasize understanding and develop creative thinking, students need to be facilitated with tools that support learning. One of them is the module that integrates creative thinking in it. The research carried out includes the type of Research and Development, namely the development of basic electronics modules integrating creative thinking in the diode circuit material and its applications. The design model used is the ADDIE model. This study aims to determine the validity of basic electronics modules integrating creative thinking in the diode circuit material and its applications. This value is obtained from a validity test questionnaire by experts. Based on the data analysis that has been done, the average value of module validation is 83.97%. Based on this value, it can be stated that the overall module components are already in the very valid category.
Validasi Modul Elektronika Dasar Mengintegrasikan Creative Thinking Pada Materi Rangkaian Elektronika Yang Menggunakan Transistor dan Aplikasinya Syahrani, Filda; Hufri, Hufri
Jurnal Penelitian Pembelajaran Fisika Vol 6, No 2 (2020)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.28 KB) | DOI: 10.24036/jppf.v6i2.110861

Abstract

This research is based on the low creative thinking skills and the teaching materials used in the lessons have not facilitated the student to increase their creative thinking skill. The aims of this study was to determine the value of validity of basic electronics module integrates creative thinking in electronic circuit materials using transistor and application. The type of research used is research and development (R&D). The research procedure used in this study uses the ADDIE development model. The research steps include : analysis, design, development, implementation, evaluation. While the data analysis used is descriptive data analysis. Based on the data analyzed there are research results, namely the average value of validity of basic electronics module integrates creative thinking by experts with an average value of 86% and have very valid criteria. It can be concluded that basic electronics module integrates creative thinking in electronic circuit materials using transistor and application are very valid for use in basic electronics learning for physics student.