In the 4.0 technology era, teaching using the flipped classroom model is one of the modern advanced teaching methods and promotes pupils’ self-study ability, helping pupils know how to synthesize content. knowledge to transform into actionable skills, creating life value. Through this teaching method, learners will experience many different forms of learning (self-access to knowledge, self-discovery, searching for relevant information about the lesson...) increasing interest, promoting pupils’ proactiveness... At the same time, applying the flipped classroom model requires teachers to be more dedicated and dedicated to making the most of forms and technical means. teaching. Therefore, creating a synchronous and rhythmic interaction for both teachers and pupils to develop together. Through this article, the author wants to apply the flipped classroom model in the lesson “Redox reactions and applications in life” - Grade 10 chemistry to improve the quality of teaching and learning of teachers and pupils. Study chemistry at high schools.