sari, Lasmita
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Journal : Research in Physics Education

The Effectiveness of discovery learning model integrating PhET simulation media to enhance understanding of optical concepts Nurul Agniya, Nadia; Ismail, Ali; Sari, Lasmita
Research in Physics Education Vol. 2 No. 1 (2023)
Publisher : Insitut Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/ripe.v2i1.25

Abstract

This study aims to examine the increase in students’ understanding of the optical geometry concept after being given treatment using the discovery learning model assisted by PhET simulation media and to test the effectiveness of this learning model to improve understanding of the optical geometry concepts. The method used in this research is quasi-experimental and uses the research design The Static Group Pretest-Post-test Design. The sampling technique in this study was taken using purposive sampling, namely where the control and experimental classes were selected based on the suitability of the student’s character with the researcher’s goals. Each experimental and control group consisted of 35 participants. The experimental class used the discovery learning model assisted by PhET simulation media and the control class uses the conventional learning model. The instrument in this study was using a multiple-choice test of 20 questions. Based on the test results of the Independent Sample Test, it obtained a significance value (alpha = 0.0001 < 0.05), which means that there is a difference in increasing understanding of the optical geometry concept between classes using the discovery Learning model assisted by PhET simulation media using the learning model conventional.
Vocational school students’ perceptions toward science learning activities in the context of fashion design Nur Fadhilah, Dila; Sari, Lasmita; Nurahman, Arip
Research in Physics Education Vol. 2 No. 1 (2023)
Publisher : Insitut Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/ripe.v2i1.27

Abstract

The structure of the vocational school curriculum is different from the structure of the high school curriculum in that the vocational school curriculum contains vocational subjects which causes students to set aside non-vocational subjects such as science. One of them is science subjects, whose role is unknowingly very important because the learning process prioritizes direct experience and does not become an important concern for students. The purpose of this study was to explore empirical data regarding the perceptions of vocational school students with the expertise of Fashion Design regarding the science learning process. So far, very few or even rare empirical reasons have been found for the perceptions of Vocational High School students of fashion skills regarding the science learning process. This research uses a type of case study research method with a quantitative and qualitative approach. The sampling process in this study used purposive sampling with participants totaling 37 students with an age range of 15-16 years. The instruments used in this study were questionnaires and interviews. The results of the study revealed that there were several different student perceptions in terms of interest, competence, effort, pressure, and values related to science learning activities in fashion design vocational schools.
Analysis of diagrams in the kinetic gas theory materials in high school physics textbooks: a content analysis Agustina, Remilda; Gumilar, Surya; Sari, Lasmita
Research in Physics Education Vol. 2 No. 2 (2023)
Publisher : Insitut Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/ripe.v2i2.32

Abstract

The theory of gas kinetics material studies objects that are abstract in nature. Therefore, its learning requires visual representations capable of visualizing these abstract objects, one of which is diagrams. The presence of diagrams in high school physics textbooks is considered important to aid the learning process. This research aims to determine the distribution of diagram categories, trends in diagram usage, and teachers’ perceptions of diagram usage in the Theory of Gas Kinetics material in high school physics textbooks with a descriptive quantitative research design. The research results show the distribution of diagram categories with the highest percentage in each analyzed book being the glossary image category, accounting for an overall percentage of 45%. The usage trends of each diagram category tend to fluctuate from year to year. Based on the findings of this research, teachers’ perceptions of diagram usage in the Theory of Gas Kinetics material have three main themes: diagrams are important as learning aids to make lessons more interesting and to represent the identity of science, especially physics; the use of diagrams depends on teachers’ needs; and diagrams help students understand the text and present physics concepts more specifically.
High school students’ preconceptions about the concept of climate change considered from the perspective of visual representation Yani, Sindi; Sari, Lasmita; Fitria Amalia, Irma; Nurahman, Arip
Research in Physics Education Vol. 3 No. 1 (2024)
Publisher : Insitut Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/ripe.v3i1.123

Abstract

Preconceptions are an essential foundation for students, serving as a basis for more effective learning. In the context of climate change concepts, many students harbor misconceptions. One method to uncover students’ preconceptions is through the use of visual representations. Visual representations can elucidate students’ understanding of abstract and complex concepts. This study aims to examine and analyze the extent of high school students’ comprehension of climate change. The research employs a descriptive qualitative approach, with a population and sample comprising 63 tenth-grade science students from a high school in Indonesia. Data collection techniques included observation and interviews, with semi-structured interviews being utilized in this study. The results reveal that students have varied understandings of the concept of climate change, with many exhibiting misconceptions. The study identifies three categories of climate change concepts: (1) correct concepts of climate change, representing 37%; (2) climate change concepts based on objects, as depicted in the visualizations provided by the respondents; and (3) incorrect concepts of climate change, representing 63%. Based on empirical evidence, the students’ preconceptions of climate change are predominantly at the macroscopic level.