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Kinya Shimizu, Kinya
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A TEACHING MATERIAL FOR LEARNING ALTERNATING CURRENT CIRCUIT USING SOUNDCARD OSCILLOSCOPE -EXPERIMENTS FOR THE ELECTRICAL RESONANCE- Hasanah, Uswatun; Massango, Herieta; Tsutaoka, Takanori; Shimizu, Kinya
Unnes Science Education Journal Vol 6 No 2 (2017): July 2017
Publisher : Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v6i2.15860

Abstract

Nowadays, the lack of a facility is one of the main problems in physics education for developing countries. To solve the problem by use of the modern technology which develop around the world obviously, a teaching material in learning alternating current (AC) circuit as one of the most difficult theory in physics for secondary school students has been investigated using a soundcard oscilloscope with the laptop computer. Experiments for the electrical resonance in LCR circuits have been investigated using the sound card oscilloscope; experimental results were compared to that measured by the conventional oscilloscope system. As expected, the investigated soundcard oscilloscope experiments show a good performance; the magnitude of electrical current as a frequency response proves the effectiveness of the teaching material in physics education that shows kind of limited function of soundcard oscilloscope that utilizes as a benefit in a simple experiment. For the further work, the teacher can utilize and develop this software for the other teaching materials for example related to traditional music or traditional apparatus which tend to find around student’ home or school, so students can understand more deeply about the concept of alternating current in many cases and more interesting classes can be created.
EXPLORING MISCONCEPTIONS ABOUT THE CHARACTERISTICS OF SOLID, LIQUID, AND GAS AMONG JUNIOR HIGH SCHOOL STUDENTS IN KAMPOT PROVINCE, CAMBODIA Sreypouv, Ouch; Shimizu, Kinya
Unnes Science Education Journal Vol 6 No 3 (2017): December 2017
Publisher : Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v6i3.20351

Abstract

Research shows that students’ misconceptions interfere with students’ learning of scientific concepts. Meanwhile, the significant effects of students’ misconceptions on their achievement has been a concern for teachers who strive to find ways of dealing with the misconceptions. This study was conducted to explore Cambodian students’ misconceptions of states of matter (Solid, liquid, and gas), which main aimed to investigate what type of misconceptions which they held in the concept of characteristics of solid, liquid, and gas. Data was collected using a 15 multiple-choice two-tier test which was administered on 330 junior high school students in Kampot province, Cambodia. In this test, students’ responses were categorized into three: correct answer, misconception, and incorrect answer. Data analysis through descriptive statistics showed the frequencies of each students’ misconceptions. Students’ responses to the items revealed that 20 misconceptions were held by less than 50% of the students whereas 4 misconceptions were held by more than 50% of the students who took the test. Interviews with some of the students revealed the nature of students’ understanding of the concept of states of matter. Two main conclusions were derived to explain these results: 1) students tend to attribute macroscopic view to microscopic view and 2) students believe matter exist unless they see.
Co-Authors Herieta Massango, Herieta Sreypouv, Ouch Takanori Tsutaoka, Takanori Uswatun Hasanah