IMPACT OF INSTRUCTIONAL MATERIALS IN TEACHING AND LEARNING OF PHYSICS IN SENIOR SECONDARY SCHOOLS : A CASE STUDY OF SOME SELECTED SECONDARY SCHOOLS IN ONITSHA EDUCATIONAL ZONE by

The study is geared towards assessing the impact of instructional materials in teaching and learning of physics in senior secondary schools with special reference to secondary schools in Onitsha Educational zone of Anambra State. The study utilizes the simple random sampling technique. Physics Achievement Test (PAT) and questionnaire are the instrument used for data collection. The (PAT) at 0.82 reliability was used to measure the achievement of the students in physics and the questionnaire was used to ascertain how the use of instructional materials improved the performance of the physics teachers. The students were divided into two groups (experimental and control) groups. The experimental group was taught using instructional materials while the control group was taught without instructional materials. Data collected analyzed using mean, simple percentage, and ztest statistics. The findings revealed that students taught with instructional materials performed better than those taught without instructional materials. The findings also showed that the use of instructional materials in teaching influences the performance of the physics teacher positively. The null hypothesis tested at 0.05 level of significance indicated that there is significant difference between the physics achievement scores of those taught with instructional materials and those taught without instructional materials. Based on the above findings, the researcher recommend that teachers, students, parents and educational administrator and policy makers should make concerted efforts to make sure that instructional materials is to be use in teaching and learning of physics in our secondary schools.