This paper presents the results of a study on the adoption and integration of Information and Communication Technology (ICT) in the classroom in Nigeria from the teachers' perspective. Although the Internet and digital devices are becoming increasingly accessible by many more people in Nigeria, the literature shows that their adoption and integration in the classroom is still low. This research adopts the case study method to examine the barriers as well as the solutions from the perspective of the teachers. Twenty science teachers from different schools in Ekiti State, Nigeria participated in this study. A combination of focus groups and questionnaires was used to collect data. The results show that the main barriers against the adoption and integration of ICT in the classroom include a lack of adequate and well-trained personnel, poor internet service, as well as high cost of access. The identified solutions include changes to the curriculum to support digital literacy, funding and material support from both regional and national government, and digital literacy training for the teachers. These findings provide practical insights for school leaders and policy makers on strategies and recommendations to improve the adoption and integration of ICT in schools in Nigeria.