Explore the first lecture in a series on disordered strongly correlated systems presented by Eduardo Miranda from the State University of Campinas, Brazil. This 1 hour and 35 minute class is part of the São Paulo School of Advanced Science on Disordered Systems organized by ICTP-SAIFR, scheduled for April 28 - May 9, 2025. Gain foundational knowledge in this specialized field of physics as Professor Miranda introduces key concepts and theoretical frameworks that underpin the study of systems exhibiting both strong correlation and disorder. Delve into the complex interplay between electron interactions and randomness in materials, setting the groundwork for advanced topics to be covered in subsequent classes of the series.