''Clase 406 is a Mexican telenovela (series), which was produced by and broadcast by Televisa and aired in Canal De Las Estrellas in Mexico and Univision in the United States. The series aired from July 1, 2002 to October 2003 in Mexico. The series had four seasons and 350 one-hour episodes in total. It is a remake of a Colombian TV Series titled Francisco el Matemático, which aired in 1999. The story deals with the problems of current Hispanic youth, in general like sex, drug dealing, abuse, drinking, rape, deception, and heart break. The show had brought fame to the band La Quinta Estación in Mexico and their cast too have received the attention from the media. The show was replaced by C.L.A.P. El Lugar para Tus Sueños (2003). The original music for the series was performed by Caos, La Quinta Estación and Cristian Castro; former pop-rock singer Lynda Thomas also wrote several songs, which were performed by members of the cast.