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1. IMPLEMENTATION OF STEM-ORIENTED SIMULATION BASED TRAINING ON LIVING THINGS AND ENVIRONMENT INTERACTION IN JUNIOR HIGH SCHOOL UNIVERSITAS PANCASAKTI TEGAL TAHUN AJARAN 2025 Dwi Topo Pamuji Science Education Pancasakti University Tegal (Indonesia) 4th ICOTION 2025

2. INTRODUCTION Indonesia is prone to disasters: earthquakes, floods, landslides, tsunamis. 60% of schools are located in disaster-prone areas (BNPB, 2023). Students’ disaster literacy remains low. Science learning tends to be theoretical, not connected to disaster mitigation. Solution: STEM approach combined with Simulation Based Training (SBT). ICOTION 2025

3. METHODOLOGY Method: Research & Development (R&D) with Model of Educational Reconstruction (MER). MER stages: 1) Analysis of scientific content, 2) Study of learning processes, 3) Design & evaluation of learning materials. Subjects: 30 seventh-grade students, Junior High School Muhammadiyah Kluwut . Instruments: validation sheets, student response questionnaires, pretes – posttest. ICOTION 2025

4. Validation by material & media experts using Likert scale. Student responses measured with questionnaire (Likert scale). Learning outcomes analyzed with N-Gain test (Hake, 1999): g ≥ 0.70 = High 0.30 ≤ g < 0.70 = Moderate g < 0.30 = Low ICOTION 2025

5. VALIDATION RESULTS Teaching Module Validation Expert 1: 77% (Very Worthy) Expert 2: 88% (Very Worthy) Average = 83% → Highly Feasible ICOTION 2025

6. ICOTION 2025 Aspect Percentage Category Interest 89% Very positive Conceptual Understanding 85% Very positive Activeness 88% Very positive Preparedness 87% Very positive Student Responses

7. ICOTION 2025 Pretest average score: 68.03 Posttest average score: 87.53 N-Gain = 0.589 (moderate category) Indicates significant improvement in student learning outcomes. Learning Outcomes (N-Gain)

8. ICOTION 2025 STEM based SBT model is effective in improving conceptual understanding, activeness, and disaster preparedness. Validation results: highly feasible (83%). Students’ responses: very positive (≥85%). Recommended to apply on other science topics (climate change, pollution, biodiversity conservation). CONCLUSIONS

9. Thank You The best of people are those who bring benefit to others.