Cumulative Effects of Understanding Pre-requisite Chemistry Concepts
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Cumulative Effects of Understanding Pre-requisite Chemistry Concepts

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The study of chemistry among sciences has a direct effect on the nations' economy. It has been observed that students encounter difficulties in trying to solve chemical problems. This could be linked to their inability to learn adequately pre-requisite concepts. This research examined the cumulative effects of understanding learned pre-requisite chemistry concepts on problem solving ability among secondary school students. 394 students and 10 chemistry teachers took part. Three instruments; Modified two-tier multiple choice (M.T.M.C)test, Instances of difficult chemical concepts (I.D.C.C), and...