Garuda - Garba Rujukan Digital

Modeling climate phenomenon with software grids analysis and display system in the development of the global warming module Afrizal Mayub; Leni Hendraini; Henny Johan; Fahmizal Fahmizal; Rendy Wikrama Wardana
Bulletin of Electrical Engineering and Informatics Vol 10, No 6: December 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v10i6.3201

This study aims to model climate change based on rainfall, air temperature, pressure, humidity and wind with grADS software and create a global warming module. This research uses 3D model, define, design, and develop. The results of the modeling of the five climate elements consist of the annual average temperature in Indonesia in 2009-2015 which is between 29oC to 30.1oC, the horizontal distribution of the annual average pressure in Indonesia in 2009-2018 is between 800 mBar to 1000 mBar, the horizontal distribution the average annual humidity in Indonesia in 2009 and 2011 ranged between 27-57, in 2012-2015, 2017 and 2018 it ranged between 30-60, during the East Monsoon, the wind circulation moved from northern Indonesia to the southern region Indonesia. During the west monsoon, the wind circulation moves from the southern part of Indonesia to the northern part of Indonesia. The global warming module for SMA/MA produced is feasible to use, this is in accordance with the value given by the validate of 69 which is in the appropriate category and the response of teachers and students through a 91% questionnaire.

Development of MITEDA (Mitigation of Earthquake Damage) Media for Wave Physics Using a STEM Approach to Enhance Students’ Computational Thinking Skills Kristian Dinata; Afrizal Mayub; Iwan Setiawan; Henny Johan; Sutarno Sutarno
Journal Evaluation in Education (JEE) Vol 6 No 4 (2025): October
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jee.v6i4.1709

Purpose of the study: The aim of this study is to develop and evaluate the effectiveness of a learning media called MITEDA (Mitigation of Earthquake Damage), which is based on the STEM approach and computational thinking, to support the teaching of wave physics. The study focuses on both the development process of the media and its impact on improving students’ computational thinking skills through contextual problem-solving using earthquake simulation and sensor-based data. Methodology: The research method used is Research and Development (R&D) with the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model. Tools used include Arduino Uno, SW-420 vibration sensor, LCD 16x2, and a buzzer. Software includes Arduino IDE and Proteus. Data collection used expert validation sheets, student questionnaires, observations, and computational thinking tests. Main Findings: The MITEDA learning media, comprising a digital seismograph kit and instructional module, was rated “highly feasible” by experts (Aiken’s V ≥ 0.80) and received positive student feedback for usability and engagement. Statistical analysis showed a significant improvement in computational thinking skills for the experimental group (N-Gain = 0.84) compared to the control group (N-Gain = 0.56), t(69) = 8.875, p < 0.001, d = 2.716, with the highest gains in abstraction and consistent high-level algorithmic performance. Novelty/Originality of this study: This study presents an innovative learning media, MITEDA, integrating STEM and computational thinking through earthquake simulation using Arduino-based sensors. It advances wave physics learning by providing real-time vibration data and contextual problem-solving, enhancing students’ analytical skills.

Development of MITEDA (Mitigation of Earthquake Damage) Media for Wave Physics Using a STEM Approach to Enhance Students’ Computational Thinking Skills Kristian Dinata; Afrizal Mayub; Iwan Setiawan; Henny Johan; Sutarno Sutarno
Journal Evaluation in Education (JEE) Vol 6 No 4 (2025): October
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jee.v6i4.1709

Purpose of the study: The aim of this study is to develop and evaluate the effectiveness of a learning media called MITEDA (Mitigation of Earthquake Damage), which is based on the STEM approach and computational thinking, to support the teaching of wave physics. The study focuses on both the development process of the media and its impact on improving students’ computational thinking skills through contextual problem-solving using earthquake simulation and sensor-based data. Methodology: The research method used is Research and Development (R&D) with the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model. Tools used include Arduino Uno, SW-420 vibration sensor, LCD 16x2, and a buzzer. Software includes Arduino IDE and Proteus. Data collection used expert validation sheets, student questionnaires, observations, and computational thinking tests. Main Findings: The MITEDA learning media, comprising a digital seismograph kit and instructional module, was rated “highly feasible” by experts (Aiken’s V ≥ 0.80) and received positive student feedback for usability and engagement. Statistical analysis showed a significant improvement in computational thinking skills for the experimental group (N-Gain = 0.84) compared to the control group (N-Gain = 0.56), t(69) = 8.875, p < 0.001, d = 2.716, with the highest gains in abstraction and consistent high-level algorithmic performance. Novelty/Originality of this study: This study presents an innovative learning media, MITEDA, integrating STEM and computational thinking through earthquake simulation using Arduino-based sensors. It advances wave physics learning by providing real-time vibration data and contextual problem-solving, enhancing students’ analytical skills.

Development of a Stem-Based Mini Hydropower Education Kit on Renewable Energy Materials to Improve High School Students' Science Process Skills Septiana Septiana; Afrizal Mayub; Henny Johan
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 8, No 2 (2026): July
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v8i2.12187

The integration of Science, Technology, Engineering, and Mathematics (STEM) into science education has become an effective approach to fostering students' higher-order thinking and science process skills. However, the limited availability of interactive learning media for renewable energy topics, particularly mini hydropower systems, remains a challenge in high school science instruction. This study aimed to develop a STEM-based Mini Hydropower Education Kit on renewable energy materials and evaluate its validity, practicality, and effectiveness in improving high school students' science process skills. This research employed the Research and Development (R&D) method using the ADDIE model, consisting of Analysis, Design, Development, Implementation, and Evaluation stages. The developed education kit was validated by experts in physics education, learning media, and instructional design. The implementation involved high school students who participated in STEM-oriented learning activities using the developed kit. Data were collected through expert validation sheets, student and teacher response questionnaires, observation sheets, and science process skills tests administered before and after the intervention. The findings indicated that the developed education kit achieved a very high level of validity and practicality based on expert assessments and user responses. Furthermore, the implementation of the STEM-based Mini Hydropower Education Kit significantly improved students' science process skills, including observing, formulating hypotheses, conducting experiments, interpreting data, and drawing conclusions. The improvement was reflected in higher post-test scores compared to pre-test results and supported by positive student engagement during learning activities. Therefore, the developed education kit can serve as an effective instructional medium for renewable energy education while promoting meaningful STEM learning and enhancing students' science process skills in secondary education.

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