This course provides a comprehensive introduction to groundwater modeling with emphasis on the physical processes governing subsurface flow and transport. Students will develop a strong conceptual understanding of aquifer systems, including groundwater flow in porous media, boundary conditions, and recharge and discharge processes. The course covers the mathematical foundations of flow and transport equations, numerical solution techniques, and model discretization principles. Students will learn how to construct conceptual models, translate them into numerical models, and evaluate model performance through calibration. Practical sessions focus on applying modeling tools to simulate steady-state and transient flow conditions, pumping tests, contaminant transport, and resource management scenarios.