Impact of Class Size on Students’ Academic Performance in Chemistry Among Selected Public Senior Secondary Schools in Sabon Gari Local Government Area of Kaduna State

The main purpose of this study is to examine the impact of class size on students’ academic performance in selected public senior secondary schools in Sabon Gari Local Government Area of Kaduna State. In this study, the effect of class size on students’ academic performance and instructional strategies were analyzed. Self-administered questionnaire was used as instrument of data collection for the study. A sample of two hundred (200) students in four selected public secondary schools was used. Senior secondary two (SS2) and three (SS3) students were used for the study. The students were selected randomly and one hundred and seventy (170) questionnaires was correctly filled and collected, thirty (30) questionnaires was either not collected or wrongly filled. The analysis was done using descriptive statistics, percentage and frequencies. It was found that large class size has negative effect on students’ academic performance in chemistry. It was also observed that class size has implications on instructional strategy and students’ academic performance. It is recommended that the class must be sizeable to encourage teacher-students interaction for effective teaching and learning, policy makers should consider as a matter of priority the issue of increased funding of secondary school education in Nigeria and also school supervisors and inspectors should concentrate more on the number of students in each class and avoid overcrowding in classes.