Dissertation (MSc Computer Science)This study focuses on examining the use of computer assisted instruction model in improving learning of mathematics in Tanzania secondary schools. In particular the study assessed the capacity and the efficiency of using computer assisted instruction in learning of mathematics. Two secondary schools were used in this study namely:- St. Anthony's Secondary School and Kibasila Secondary School. Both of these schools are in Temeke District, Dar es salaam. The study comprised 40 students and 4 teachers from St. Anthony's Secondary School and 50 students and 3 teachers from Kibasila Secondary School. The study employs semi-structured interview, questionnaire and observation in collecting of data. Results show that, 100% of teachers and 84% of students respond that, it is possible to use computer assisted instruction model in teaching and learning of mathematics in secondary schools as the model was used. Interview and focus group discussion were used to collect students and teaches views on the viability of using computer assisted instruction for learning of mathematics. Observation was used to view the acceptability and effectiveness of the model to teachers and students. Both teachers and students indicated that computer assisted instruction model was very useful in improving teaching and learning of mathematics in secondary schools. If the model is adopted, positive impact on mathematics performance will be experienced.