International Journal of Sub-Saharan African Research (IJSSAR)

Background: The quest to enhance students' performance in Chemistry has led to increased interest in innovative instructional strategies such as the use of information and communication technologies (ICTs) in teaching and learning. One of such is PowerPoint-based instruction mode. Meanwhile the impact of this mode of instruction on students' achievement in Chemistry has remained largely underexplored.
Objective: This study examined impact of PowerPoint-based instructional modes on secondary school students’ performance in Chemistry Achievement Test (CAT) in Obudu Local Government Area of Cross River State, Nigeria.
Method: Quasi-experimental design was employed and the simple random sampling technique adopted in drawing four secondary schools from the twenty-eight public secondary schools that make up the Obudu Local Government Area for the study of which 114 SS II students were used as sample from a population of 2,009 SS II students. Data were collected using Chemistry Achievement Test (CAT) with a reliability coefficient of 0.87, determined using KR-20. The mean and standard deviation were used to answer three research questions while ANCOVA was used to test three hypotheses that guided the study at 0.05 level of significance. Results: The findings of the study revealed that the mean achievement scores of students taught Chemistry using PowerPoint modes was higher than the mean achievement scores of students taught with the Lecture Method. This difference is statistically significant at p