Imperative Effectiveness of Locally-Made Acids and Bases on Senior Secondary Chemistry Students’ Academic Performance in Rivers State
Abstract
This study investigated the effectiveness of locally-made acids and bases on Senior Secondary Students’ academic performance in Rivers State, Nigeria. A descriptive survey design was adopted and the population comprised all public and private Senior Secondary1 chemistry students. 97 students in intact classes of selected schools formed the sample of the study. The instrument was Chemistry Performance Test. The face and content validity of the instrument was ascertained by two Science Education lecturers and one expert in Measurement and Evaluation. The reliability coefficient was calculated using the test-retest method and the value was 0.76. Mean and standard deviation was used to answer the research questions while the hypotheses were tested at 0.05 level of significance using t-test. Findings showed that locally-made instructional materials are more effective than factory-made ones and as such could serve the same purpose in schools where the ready-made instructional materials are not insufficient or unavailable. There was a significant difference between chemistry students’ academic performance on acids and bases when taught using locally-made and factory-made instructional materials. Students taught with locally-made instructional materials obtained higher performance test scores than those taught with factory-made solutions. No gender-related significant difference was found while students’ performance differed significantly based on school type. It was recommended among others, that chemistry teachers should always improvise instructional materials whenever the materials are not available and government should organize training for teachers on how to improvise chemistry instructional materials.
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