Nature of science (NOS) is a key component of scientific literacy, so science teacher education on NOS is critical to ensure students' scientific literacy. According to mainstream NOS literature, explicit and reflective interventions are recommended to effectively teach NOS. This paper presents an experience for the initial education of secondary…

The aim of this study is to determine the pre-service teachers' perceptions of atom and atomic structure through a word association test. It is important to concretize the concepts having a significant influence on the learning of subjects. Through this concretization, students' understanding of the concepts and accordingly of the subjects is…

This research aims were to: (1) produce a PhET simulation-based learning device that who being used in physics learning activities by using Problem Based Learning (PBL) model to improve critical thinking skills of students MAN 3 Sleman in chapter work and energy, (2) knowing the effectiveness of learning medium in the form of PhET simulation in…

The aim of this study was to examine the effectiveness of science-technology-society (STS) approach based worksheets on improving Indonesian students' scientific literacy of 'environmental pollution' topic. Through quasi-experimental research method (nonequivalent pre-post control group design), the sample of the study comprised of 64 junior high…

Analytical thinking is the competency needed by students in order to compete and achieve success in the professional field for the 21st Century. Research that aims to examine the most optimal learning model in empowering students' analytical thinking needs to be done since many students have low ordered thinking skills. Through this…

The abstractness of certain chemistry concepts demands the use of appropriate teaching strategies to enable students to construct mental images of the concepts. The concepts include understanding the effects of concentration and catalyst on the rate of reaction. The reactions at the molecular level are not visible to human eyes and the use of…

This study aimed to obtain the characteristics of students' mental models and the difficulties experienced by students while studying in schools in developing the ability of creative imagination. The number of samples involved in this study was 89 students of grade 11. The instrument used to achieve that goal were a test mental models in the form…

The objectives of the research were to identify the difficulty level of various types of chemical representation for students and to examine the effects of two different models of teaching and learning chemistry (problem-solving based on multiple representations and problem-solving) on the students' cognitive achievement in chemical equilibrium.…

The aim of this research was conducted to determine the effects of Cooperative Integrated Reading and Composition (CIRC) with mind mapping strategy on the student's achievement and motivation of 11th-grade Secondary students in Pekanbaru Indonesia regarding topics related to colloid. This research employed a pre test / post test quasi-experimental…

The magnetic force is one of the concepts in physics that need good mathematical modeling and representation ability to understand. This article presents new learning model to help the student understand this concept with various representation, knowing by doing, and accommodate their mathematics modeling ability. GIMuR model has five phases,…

This study aimed to discover subject-specific science teachers' views of alternative assessment. The questionnaire by Okur (2008) was adapted and deployed for data collection. The sample consisted of 80 subject-specific science teachers drawn from the cities of Trabzon, Rize and Erzurum in Turkey. In analyzing data, descriptive analysis was…

The aim of this article is to prove the advisability of using the interdisciplinary approach for the formation of learners' situational interest in physics. The general method of using the interdisciplinary approach in physics teaching has been created. The study of new material, the formation of abilities and skills, and the work on projects are…

This paper attempts to investigate the understanding of the law of mechanical energy conservation using a guided inquiry approach. A simple hands-on model was constructed and used to demonstrate the law of mechanical energy conservation. A total of 30 grade ten students from one of the middle secondary schools in western Bhutan participated in…

Photoelectric effect is regarded as one difficult topic in physics for science students because it is the abstract and multidimensional phenomenon. This study aims to develop the learning unit incorporated simulation and game with the 5E learning cycle for promoting the grade 12 science students' understanding of photoelectric effect and learning…

In this research, the purpose was to examine and compare the effect of teaching Electric Current, which is a topic of grade 11 physics lesson, on student achievement and attitude according to the 5E model belonging to the constructivist learning theory and the traditional teaching method. The research was conducted in the spring semester of…