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Kristiani
Universidade Nacional Timor Lorosa’e, Timor-Leste
Humanities Languange, Linguistic, Communication & Media Other

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Implementation of the discovery method in teaching newton’s second law for physics education students Kristiani; Paulo Alves Cabral; Pedro Correia
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 7 No. 4 (2026): (In Progress)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol7iss4pp551-556

Abstract

This study examines the implementation of the Discovery Learning method in Micro Teaching courses for Physics Education students at Universidade Nacional Timor Lorosa’e (UNTL). Discovery Learning is a student-centered approach that encourages learners to construct their own understanding through experimental activities, while the teacher serves primarily as a facilitator. The purpose of this research is to determine whether this method can be easily understood and applied by students. This study employs a qualitative design with a case study approach. Data were collected through classroom observations and documentation analysis, then analyzed descriptively to identify patterns in student performance and teaching practices. The findings reveal that most students were able to design systematic lesson plans based on the Discovery Learning framework. However, a small number of students experienced difficulties in implementing the method sequentially during teaching practice. Despite these challenges, the use of simple and easily accessible materials proved that the method can be effectively applied in classroom settings. Overall, the study concludes that Discovery Learning is feasible and beneficial for Micro Teaching students, as it promotes deeper conceptual understanding, particularly in learning complex topics such as Newton’s Second Law
Analysis of household electricity expenditures among residents of suco leuro, lospalos administrative post, lautem municipality Paulo Alves Cabral; Pedro Correia; Kristiani
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 7 No. 5 (2026)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol7iss5pp691-697

Abstract

In general, the population of Suco Leuro relies on electrical energy for daily activities, which is predominantly non-renewable and supplied by the state through the public utility company EDTL (Eletricidade de Timor-Leste). This electricity is purchased via prepaid systems at designated sales stations; however, consumers often overlook strategies for energy conservation. Therefore, this study aims to examine the patterns of electricity expenditure among households in Suco Leuro over a one-week period. This research was conducted to describe both the positive and negative effects observed in the field. The study employed a sample-based research design, involving 60 household heads as respondents in Suco Leuro, Lospalos Administrative Post, Lautem Municipality, during the 2023 academic year. The findings indicate that 100% of the population in Suco Leuro has had access to electricity since 2013 and has installed prepaid electricity meters. The analysis of the results shows that 28.3% of households consume between 2.1 and 9.45 kWh per week, 45% consume between 10.14 and 18.4 kWh per week, and 26.7% consume between 22.45 and 43.86 kWh per week. These findings suggest that higher electricity consumption is primarily influenced by the duration of appliance usage and the power capacity of electrical devices used by households.
Simulation-based learning using phet on the concept of series and parallel electrical circuits in secondary schools in timor-leste Kristiani; Pedro Correia; Paulo Alves Cabral; Isabel Tina Guterres
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 7 No. 5 (2026)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol7iss5pp682-690

Abstract

The teaching methods employed by instructors can vary depending on learning objectives, student profiles, and available resources. Commonly used teaching methods include traditional or conventional approaches, demonstration methods, experimental methods, and others. This study implemented a PhET simulation-based teaching project on the concept of series and parallel electrical circuits: a study involving 12th-grade students majoring in Electrical Engineering at São João Bosco Secondary School in Venilale, Timor-Leste. The study aimed to investigate students’ learning outcomes following the PhET simulation-based instruction on series and parallel circuit concepts. To achieve this objective, a survey test instrument was employed. The test was administered to 34 students. The results indicated that the calculated t-value was greater than the critical t-value (t_calculated > t_table) or (23.63 > 2.035), demonstrating a significant difference before and after the use of PhET simulations in teaching the concepts of series and parallel electrical circuits. This had a positive impact on the development of students’ knowledge.
Co-Authors Isabel Tina Guterres Paulo Alves Cabral Paulo Alves Cabral Pedro Correia Pedro Correia