Nowadays, the use of computers in education is increasing worldwide. Information technology is deemed essential for the digital generation's classrooms. However, the adoption of technology in teaching and learning largely depends on the culture and social context. The aim of this research study is to evaluate the acceptance and use of technology of 12th grade teachers in public high schools in Lebanon. The theoretical framework is drawn from the Unified Theory of Acceptance and Use of Technology (UTAUT) to investigate teachers' intentions regarding the use and acceptance of technology in their daily teaching tasks. The participants were 161 teachers in Lebanese public high schools who completed a questionnaire that reflects the UTAUT. Social influence, experience and voluntariness of use appeared to have the strongest effect on teachers' attitudes regarding the use of technology, while effort expectancy and facilitating conditions had the lowest effect. These findings suggest that public schools should implement training in technology for teachers to support their teaching tasks in the context of this current digital generation of students. The study offers a discussion of the results and recommendations for policy and practice.