BINARY SALTS: THEIR EFFECTS ON ACADEMIC ACHIEVEMENT OFSECONDARY SCHOOL STUDENTS IN QUALITATIVE INORGANIC ANALYSIS INOYO METROPOLIS

Abstract

The study examined the effect of binary salts on academic achievement of secondary school students in qualitative inorganic analysis. The study employed quasi experimental design with pretest, posttest, non – randomized control group and non – equivalent intact groups. The study was carried out in Oyo Educational Zone of Oyo State. 450 senior secondary II Chemistry students were used for the study. The instrument for data collection was Test of Concept of Qualitative Inorganic Analysis developed by the researcher. Kuder Richardson was used to establish the reliability of the instrument and the coefficient of internal consistency gave an index of 0.87. The data gathered from the instrument was analysed using Analysis of Covariance {ANCOVA} statistic. Findings revealed that students taught qualitative inorganic analysis using improvised materials as salts have higher academic achievement than those taught the same concept using standard salts. It was recommended that Chemistry teachers should be using dried
plantain peels powder and limestone ore in the teaching of qualitative inorganic analysis