This research is motivated by the absence of a virtual laboratory-based practicum module to be used as a mandatory guide for students. So that students find it difficult to understand the concepts of physics related to the photoelectric effect practicum, especially in this pandemic era. This research aims to develop a Virtual Laboratory-Based Photoelectric Effect Practicum Module Using a Discovery Learning Model. This study is a research and development study using the 4D research model adapted from the Thiagarajan model, namely define, design, develop, and disseminate. The results of the study for students got an average value of 82.75%, so that the module was included in the feasible / valid category. And in response 57.35% of students chose very useful (SB), 42.65% of students chose useful (B), and no student chose less useful (KB) and not useful (TB). Based on the research results, it can be concluded that the product has been produced in the form of a photoelectric effect practicum module based on a virtual laboratory using a discovery learning model with good and proper qualifications.
The use of semiotic resources in developing abilities and skills in physics problems is very important. PIMCA learning model (Presentation, Idea Mapping, Conceptualization and Formative Assessment) introduced and developed by Cosmas Poluakan is the focus of this research. The purpose of this study was to analyze student difficulties on learning the refraction using the PIMCA model based on multi-representation (MR). The type of research used experimental research with one group pretest-posttest design. The research was conducted in the Department of Physics, Manado State University, with 23 students as respondents. The test instrument used for this research has been validated. After processing and analyzing the data, the pretest average score was 15.9 and the posttest average score was 60.2. These results indicate that even though there is an increase in the average proportion of mastery of the refraction of light concept, generally students still have difficulty drawing the angle of incidence, direction of refraction and the position of refraction for the arrangement of 2 mediums. The results of this research recommend that in order to understand the concept of refraction, the use of the PIMCA model needs to provide more practice questions.
<p>Utilization of the surrounding environment as a learning resource is considered superior in improving comprehensively the knowledge, psychomotor and student affection. Learning about the environment (nature, socio-culture) allows new information to enrich the experience gained by students from outside the classroom. The surrounding environment-based learning should be enriched with information from relevant external sources, among others through mass media or reference/learning resources. Learning comes from the surrounding environment is very relevant and useful for schools (junior and senior high school) in the small island that experienced problems of lack of teaching materials, and the limitations of teachers. An interesting learning strategy in the development of learning comes from the surrounding environment is to compile and associate facts and phenomena (nature and social culture) that is around with external information that is passed through mass media or printed sources, photographs etc. This article discusses the design and experimental design of teaching in the form of thematic tasks that emphasize the learning process through comparison activities and local context associations with global context based on the concept of science and mathematics. The results of the experiments show that the group of students have the motivation and active activities of comparison and association of local context with global, although the mastery of science and mathematics concepts are not so good. Students generally perceive good and excellent design and testing of learning activities.</p>
Learning in nature is a real form of the educational process. Siau Tagulandang Archipelago Regency which is an area of salak plantation forest that is widely cultivated by the community, but this has an impact on the absence of learning activities, especially regarding physics in the area. So, to realize the process of learning activities in the area of salak plants, an expolarative research was carried out with the aim of identifying the ecosystem and the interactions that occurred and analyzing the effect of the frequency of rain on the infiltration rate. That infiltration is the flow of water into the soil through the soil surface. Infiltration (infiltration rate and capacity) is strongly influenced by various variables, including soil type, slope, density and type of vegetation, soil water content, and rainfall intensity. This research is an expolarative research that emphasizes how students can see the facts/phenomenon they see with the concept of physics. The rate of infiltration and the infiltration capacity of the soil decreases in direct proportion to the increase in the frequency of rain, the more the frequency of rain, the smaller the infiltration that occurs at the same level of rain intensity
Limited laboratory equipment and the current pandemic Covid-19 are the causes of practicum activities not running optimally.to overcome these obstacles, the virtual laboratory can be used as a medium for distance learning. This study aims to determine the effectiveness of using virtttual laboratories as learning media in viscosity experiments. This research is a pre-experimental study with one group pretest-posttest design. The research subjects were semester I Students of the Departement of Physics, Manado State University 2020/2021. Retrieval of data using test instruments in the form of essays and science process skills and affective using rubrics. The average preest results were 43,75 and posttest results were 84,38. The average results of the assessment of science process skills are in good criteria (66%-79%) and very good criteria (80%-100%) while affective assessments are very good criteria (80%-100%). For each student, there were 10 students in high N-Gain category with a percentage of 62,5% and 6 students in the moderate N-Gain category with a percentage of 37,5%. The results of the average N-Gain percentage of 16 students was 74,9%. The results of this study indicate that use of a virtual laboratory is quite effective in being used as a learning medium in viscosity experiments.
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