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Mudhofir, Faiz
Postgraduate, Universitas Negeri Semarang, Indonesia
Education

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Analysis of the Implementation of Reasoning Learning Based on the Scientific Approach in Physics Learning Effendy, Suhardi; Mudhofir, Faiz; Hartono, Hartono; Yulianti, Ian
Journal of Innovative Science Education Vol 8 No 1 (2019): Article In Press
Publisher : Postgraduate, Universitas Negeri Semarang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.096 KB) | DOI: 10.15294/jise.v7i2.26570

Abstract

Physics is an integral part of natural science. Basically physics is the study of natural phenomena in the form of facts, concepts and laws that have been tested by a series of studies. This study aims to describe the implementation of reasoning learning by teachers in public high school students in the city of Palembang. This type of research is descriptive qualitative research. The research was conducted in seven Palembang City State Senior High Schools on Momentum and Impulse material. Subjects in this study consisted of seven teachers and 231 students from seven public high schools in the city of Palembang. Research subjects were determined through purposive sampling technique. The results showed that the implementation of reasoning learning activities was not optimal. Learning the reasoning done by the teacher is limited to reasoning activities which is the final conclusion of the thinking process without observing, asking questions and trying. The final conclusions made by students are only based on the teacher's explanation of the one-way learning process. This can be seen from the percentage of the implementation of reasoning activities on the scientific approach that gets a percentage of 39.04% and is included in the medium category.
Infrared Sensor Kit as a Speed Detector in the Practicum of Energy and Momentum Laws Mudhofir, Faiz; Effendy, Suhardi; Linuwih, Suharto; Sulhadi, Sulhadi
Journal of Innovative Science Education Vol 8 No 1 (2019): Article In Press
Publisher : Postgraduate, Universitas Negeri Semarang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (466.196 KB) | DOI: 10.15294/jise.v7i2.26571

Abstract

Material law of conservation of energy and momentum is abstract material. Practical tools are needed in learning to prove the law so that it can foster real learning for students. This research method is an experimental method that aims to find out how to test the energy conservation and momentum law practicum kit. The practicum kit consists of wheeled objects as loads, precision rails as slippery trajectories, and infrared sensor devices to detect the speed of motion of objects. The kits that have been compiled are then validated by experts before use. Kit validation results are valid. In the implementation of the kit testing the independent variables selected are object mass and slope height. The test results obtained that the kit equipped with infrared sensors is quite accurate in explaining the law of conservation of energy which is evidenced by the relative error that occurs is quite small, namely 1%. In testing the law of conservation of momentum obtained the result that the momentum value of the two objects before the collision approaches the momentum value after the collision. The kit testing results become a solution and innovation as a practical tool to help with more tangible learning.
Co-Authors Effendy, Suhardi Hartono Hartono Ian Yulianti, Ian Suharto Linuwih Sulhadi -