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Arif Widiyatmoko
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Unnes Science Education Journal
Published by Universitas Negeri Semarang
ISSN : 22526617     EISSN : 25026232     DOI : https://doi.org/10.15294/usej
Core Subject : Education,
Education
This journal publishes original articles on the latest issues and trends occurring internationally in science curriculum, instruction, learning, policy, and preparation of science teachers with the aim to advance our knowledge of science education theory and practice
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 15 Documents
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Search results for , issue "Vol 7 No 2 (2018): July 2018" : 15 Documents clear
The STUDENTS’ MENTAL MODEL ABOUT NEWTON’S THIRD LAW IN INDONESIA Cahya Dinata, Pri Ariadi; Rahzianta, Rahzianta; Suparwoto, Suparwoto
Unnes Science Education Journal Vol 7 No 2 (2018): July 2018
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.v7i2.23366

Abstract

The effective learning can be built by comprehend the students’ prior knowledge. However, it is rare for teacher to arrange learning based on students’ alternative concepts, particularly be related to force and motion concept. Based on those problems, this research is aims to describe student’s mental model about Newton’s Third Law. The methods is testing by four essay items about to action-reaction forces. Those items asked students to explain, predict, and evaluate the phenomenon which is related to Newton’s Third Law. The sample include 140 students from 3 provinces in Indonesia, that consist of D.I Yogyakarta, South Borneo, and West Borneo. The results showed that there is many students held diverge mental model about action-reaction forces. The divergences among others are: the greater the mass, the greater the force in collision phenomenon; the resting object can’t exert reaction force; the action-reaction forces can be cancelling each other. The suggestion to overcome those mental models is discussed. We hope these result can be applied by others teachers to construct better leaning about Newton’s Third Law.
THE INFLUENCE OF ETHNOSCIENCE-BASED LEARNING ON CHEMISTRY TO THE CHEMISTRY’S LITERACY RATE OF THE PROSPECTIVE TEACHERS Sumarni, Woro
Unnes Science Education Journal Vol 7 No 2 (2018): July 2018
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.v7i2.23722

Abstract

A research has been conducted to analyze the influence of ethnoscience-based chemistry learning to prospective teachers’ literacy of chemistry. The subjects of the research were 40 students of chemistry education. The instrument of chemistry literacy rate’s measurement were essays which are validated by experts’ judgement and trials. The result discovered that the implementation of ethnoscience-based learning in chemistry can improve students’ literacy in chemistry, specifically in the rate of medium to high on all group of students.
HOW DOES THE STUDENTS’ CRITICAL THINKING ABILITY IN GEOMETRY OPTICS? Sutrisno, Fery Hadi; Handayanto, Supriyono Koes; Supriyana, Edi; Laksmisari, Rusna
Unnes Science Education Journal Vol 7 No 2 (2018): July 2018
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.v7i2.24297

Abstract

One of the abilities that must be possessed by students in the 21st century is the ability to think critically. This article aims to analyze students' critical thinking skills in geometric optical materials. This research is descriptive research with subject of research consisted 116 student grade 12 SMA. The critical thinking skills test instrument consists of 12 items about the description of geometric optical material with reliability coefficient of 0.701. The results of this study indicate that the average ability of critical thinking students 14.54 of scale 100 with the highest score of 48 and the lowest value 1.3. This shows that students' critical thinking skills are still in the low category. The weakest aspect of critical thinking ability is argument analysis. Need efforts to improve students' critical thinking skills, one of them is by applying learning that requires students actively in solving problems.
INNOVATIVE-THEMATIC BASED INTEGRATED SCIENCE LEARNING ON NATURAL DIVERSITY THEME TO IMPROVE STUDENTS’ CRITICAL THINKING SKILLS IN JUNIOR HIGH SCHOOL Pursitasari, Indarini Dwi; Nuryanti, Siti; Rede, Amran
Unnes Science Education Journal Vol 7 No 2 (2018): July 2018
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.v7i2.25479

Abstract

Critical thinking skills should be trained and practiced in the learning process. This study aimed to describe the use of Innovative-Thematic Based Integrated Science (ITBIS) Learning Program to improve critical thinking skills of junior high school students in Palu. The study conducted in the 7th grade from one of Palu public schools and one of Palu private schools. Data were collected by observation sheet of learning performance and students activity, also test instrument for measuring students’ critical thinking skills. The data of learning performance and students activity were analyzed quantitatively, whereas the data of critical thinking skills were analyzed using descriptive and inferential statistics. The result showed that lTBIS learning can be done well either in public school and private school with average 98,03% and 90,20% respectively. ITBIS learning also improve students activity in the learning process. The average of critical thinking skills improvement (N-gain) was 68% (public school) and 63% (private school), and there were no significant differences between both of them. It showed that lTBIS learning can be used to build critical thinking skills of junior high school students.
DEVELOPMENT OF MULTIMEDIA WEB-BASED PHYSICS LEARNING TOOLS TO STRENGTHEN STUDENTS’ CHARACTERS Akhlis, Isa; Aryani, Nila Prasetya
Unnes Science Education Journal Vol 7 No 2 (2018): July 2018
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.v7i2.26707

Abstract

This research intended to obtain an initial description of students and environment on peace-loving, environmental caring, learning methods, learning materials, and learning media applied in Physics lesson at a high school; moreover, to examine the validity of high school physic learning materials and multimedia web-based physics learning tools in strengthening the students’ characters. The data collection methods employed were (1) documentation, to get the prior data of high school physic materials; (2) observation, to collect the data of students’ initial characters; (3) questionnaire, to obtain the data of learning method, teaching materials, and learning media adopted in the learning process; and (4) validation, to test the developed learning tools’ validity. The results showed that generally, the students have possessed the character of peace-loving, while they rarely owned the environmental caring. In addition, the developed learning tools achieved a good assessment and were declared valid.

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