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EFFECTS OF ADVANCE ORGANIZER ON SENIOR SCHOOL STUDENTS’ ACADEMIC ACHIEVEMENT IN CHEMISTRY IN EKITI STATE, NIGERIA
ABSTRACT: This study investigated the effects of advance organizer on senior secondary school students’ achievement in Chemistry in Ekiti State, Nigeria. The research designed adopted for this study was nonrandomized, non-equivalent pre-test and post-test control group design. The population consisted of all senior secondary class two (SSII) students taking Chemistry in Ikere – Ekiti while sample consisted of 97 senior secondary school two students were drawn from intact classes using purposive sampling technique. The instrument used for the study was Chemistry Achievement Test. The face and content validity as well as reliability of the research instrument were carried out and reliability coefficient of 0.86 was obtained. The results of the data collected from both pre-test and post-test were collated and analysed using statistical tools involving mean and standard deviation, graph t-test and Analysis of Variance (ANOVA) at 0.05 level of significance using). The findings of the study showed that students operate at moderate level performance in Chemistry before their exposure to expository advance organizer. However, the use of expository advance organizer improves the performance of students in Chemistry more than conventional method of instruction. It was therefore recommended that the use of advance organizer should be adopted for the teaching of Chemistry as innovative tools to facilitate effective teaching and learning in secondary schools.
Key Words: Advance Organizer, achievement, Chemistry, achievement in Chemistry.