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TEACHING OF THE CONCEPT “DIFFUSION” USING DEMONSTRATION AND EXPOSITORY METHODS AND ITS INFLUENCE ON THEIR ACADEMIC ACHIEVEMENT OF STUDENTS IN BIOLOGY IN URUAN LOCAL GOVERNMENT AREA

This study examined teaching of the concept “diffusion” using demonstration and expository methods and its influence on their academic achievement of students in biology in Uruan Local Government Area. The population of the study consisted of all the senior secondary two students in Uruan Local Government Area in Akwa Ibom State. The study adopted a quasi-experimental type research design while simple random sampling technique was used in selecting the respondents. Data was obtained using an instrument tagged “Biology Achievement Test Inventory (BATI).” Data obtained from respondents were analysed using descriptive statistics (mean and standard deviation), hypotheses were tested with independent t-test analysis and Pearson Product Moment Correlation analysis was used to test the hypotheses at 0.05 alpha levels. It was concluded that Biology students taught with demonstration method perform significantly better than their counterparts taught with expository methods. Also, male students perform significantly better than their female counterparts. The concept diffusion and other topics in Biology should be taught most times using demonstration methods. Expository method is also highly recommendable.
Mary Billy
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