This research study was on the development of Computer Aided Software application package for teaching and learning matrices at senior secondary school level. The application package was designed using visual Basic, Version 6.0. Two research questions and two hypotheses were formulated and tested at 0.05 level of significance respectively. The research design that was adopted was pretest – posttest experimental research design, which was carried out in two privately owned secondary schools in Bauchi metropolis. Sixty (60) students of senior secondary schools were randomly selected and used as subjects in the study which were grouped into two, the control and experimental group respectively. The experimental group was taught with CAS package while the control group was taught using traditional teaching method. The instrument ADT was used for the collection of the data. Mean, standard deviation and t-test were used in the analysis of the data, answer the research questions and test the hypotheses in the study. The finding of the study shows that, there is significance difference in the mean performance of students taught matrices with CAS package over those taught with traditional teaching method and there is significant difference in the mean performance of Pretest and Posttest students taught matrix with CAS package. There is also significant difference between the protest and posttest mean performance of students taught matrix using traditional teaching method. Thus, it is recommended from the findings of this study that the teachers should employ the use of computer assisted instructions in teaching matrices and other aspects of mathematics in senior secondary school, since its usage enhances students’ conceptual understanding in matrices.

Keywords : Computer Aided Software (CAS), Learning, Matrices, Secondary School.