The increase of private universities in Peru has multiplied the opportunities of entry to people whose parents did not have access to university studies, who also usually work in parallel to solve their studies and help support their family, so they have greater difficulties of attendance and academic performance due to fatigue produced by work commitments. The present work applies the pedagogical model called Flipped Classroom popularized in 2007 by Jonathan Bergman and Aaron Sams, and which consists of leaving the theory for the home and performing the practice in the classroom under the supervision of the teacher. The experiment was carried out in classrooms of private universities located in North Lima where the highest percentage of students are the first generation. The results obtained show a reduction of 12.4% in absenteeism and an increase of up to 27.7% in the academic performance which was reflected in the students' grades.