This lecture introduces the basics of Finite Element Modeling in Structural Mechanics, focusing on building a simple model in COMSOL to analyze a Polysilicon Micro-Cantilever. The instructor guides through setting up the simulation, applying boundary conditions, solving, and analyzing results, aiming to obtain and interpret the first outcome. The lecture covers topics like scaling laws and simulations in Micro & Nanosystems, providing hands-on exercises to understand load types and compare with theoretical models.