[EN] This paper presents a teaching innovation applied to a Financial Mathematics group of the Bachelor's Degree in International Business and its adaptation to the context of COVID-19. With the aim of improving academic results and promoting learning in knowledge and skills that is meaningful and in line with the principles of the European Higher Education Area, flipped classroom is applied in combination with other active methodologies, whose philosophy is summed up as "Tell me and I forget, teach me and I remember, involve me and I learn" (B. Franklin). The academic results and the results of an ad-hoc survey reveal a satisfactory achievement of the objectives of the innovation.