This article presents an exploratory study of the experiences of university teachers during Emergency Remote Teaching (ERE) in response to COVID-19. Teaching practices, conditions for remote teaching and teachers' working conditions were investigated under a systematic approach. An internet survey was applied to all teachers at the Universidad Tecnológica del Norte de Aguascalientes. Results show an overload of academic activities among teachers, an increase in working hours due to planning and

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... assessment in online environments, and other sources of stress among teachers. Some difficulties faced by the institution are hightlighted and conclusions emphasize the importance of ensuring inputs that contribute to improving teaching and learning environments, preserving the health of teachers and continuing the research on the influence of different teaching conditions on teaching practices.