EFFECTS OF IMPROVISED INSTRUCTIONAL MATERIAL ON PERFORMANCE AND RETENTION OF PROPERTIES OF WAVES AMONG SENIOR SECONDARY SCHOOL PHYSICS STUDENTS IN SULEJA METROPOLIS
ABSTRACT The study investigated the effect of the use of improvised instructional materials, on performance and retention of properties of waves among senior secondary school physics students. Pretest, post- test experimental group design was used for the research study. The study comprised of senior secondary schools in Suleja Local Government area of Niger state. Samples of One hundred and twenty (120) students were selected through systematic sampling  technique.  The  instrument ...
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