The electrical topic is considered a difficult material because electricity is a substance that is not seen but can be felt. The objectives of this study were (1) to develop digital textbooks for basic electricity materials based on problem-based learning. (2) to analyze the feasibility of digital textbook products for basic electricity materials based on problem-based learning. This research is development research using the 4D model, namely define, design, develop, disseminate. This study involved language, material, and media experts in validating research products. The research subjects were students of technical engineering vocational education in one of the public universities in Indonesia who took Basic Electrical and Electronics courses, namely 25 students. The data collection technique used interviews, document analysis, and questionnaires. The data analysis technique used descriptive statistical analysis. Based on the results of the research, it is found that (1) the development of digital textbooks on basic electricity materials based on problem-based learning is carried out by referring to the 4D model development steps, namely define, design, develop, and disseminate. (2) The appropriateness of digital textbooks according to the media expert's assessment of getting a mean score of 3.61 is declared very good, the material expert's assessment is 3.52, which is declared very good, and the user response gets an assessment of 3.51, which is declared very good. Theoretically, the developed digital textbooks are able to increase student interest and motivation to learn basic electrical materials in an easy way.
This study aims to: (1) determine the process of developing a learning media simulator for electro-pneumatic systems based on dual design, (2) knowing the effectiveness of learning media in the form of electro-pneumatic system simulators based on dual design. This research is a research and development adapted from the 4D development model, namely Define, Design, Develop and Disseminate. The subjects of this study were students of Mechanical Engineering Education in Semester IV and V with 30 students taking pneumatic hydraulic courses. Data collection techniques in this study used questionnaires and interviews with research instruments in the form of interview guidelines and questionnaires. The data obtained were analyzed with descriptive quantitative. The results showed (1) The results of the development of learning media for electro-pneumatic system simulators based on Dual Design as supporting media for electro-pneumatic practices produced 3 main components, namely the working system in the pneumatic electro system, wiring diagrams and electrical circuits, (2) the feasibility results of expert validation media is 84% (Very Good), expert material validation is 92% (Very Good), and user validation is 86% (Very Good). So, the learning media for electro-pneumatic system simulator is feasible as a learning media in pneumatic hydraulic courses.
This researech to aims the effectiveness of ASSET (Assessment Simulation Test) to reconstruction physics conception and identification of student misconception. The study focused on the results of the concept of Optic concept and the quantity of misconceptions of students on the use of ASSET of one of University in Serang City, Banten, Indonesia. The data collected of research of the provision of understanding of the concept of using Four Tier test conducted after the implementation of learning. The method of research to Quasi Experiment. The subject of this research involves one group’s experimental group using “ASSET”. The highest level of comprehension is 76,67% Understanding Part 15,56% Understanding 5,56% Understanding level 2.22% and the lowest level of understanding at the No Answer level of 0%. It can be concluded that the significant effect uses of ASSET for reconstruction conception data from both groups indicate the improvement of the quantity of misconception of reconstruction physics conception.
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