Bio-Hydro Pressure Simulator: An Integrative Physics–Biology Tool for Visualizing the Concept of Fluid Pressure and the Circulatory System

Abstract

Natural Science (IPA) learning in schools is often theoretical and separated into the branches of Physics and Biology. As a result, students have difficulty understanding the relationship between physics concepts such as fluid pressure and their application to biological systems, particularly the human circulatory system. Pressure phenomena in the body, such as blood pressure due to the action of the heart, are often abstract and difficult to visualize without the aid of concrete media. Therefore, innovative learning media that can combine the concept of fluid pressure and the working mechanisms of the circulatory system are important to create meaningful and contextual learning. The purpose of this study is to develop a Bio-Hydro Pressure Simulator as an integrative learning media based on hydrostatic simulation that represents the relationship between fluid pressure and blood flow mechanisms in the systole and diastole phases. This study uses the Research and Development (R&D) method with a 3D model (Define, Design, and Develop) according to Thiagarajan that is limited to the development stage. Through this approach, the media is designed based on an analysis of learning needs, validated by experts, and systematically arranged to ensure product feasibility. The validation results show that the Bio-Hydro Pressure Simulator is suitable for use as an innovative learning medium that can help students understand the relationship between fluid pressure and the circulatory system in a concrete and interactive manner. This media is expected to be able to improve junior high school students' conceptual understanding of the phenomenon of pressure in the body and foster cross-disciplinary thinking skills between Physics and Biology