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This study investigated the impact of a problem-posing intervention on students who had been ascertained through psychometric testing as above average in their mathematical aptitude but below average in their problem-solving skills. The study uses both quantitative and qualitative methods to investigate the nature of changes that resulted following an eight -week teaching experiment. Findings of this study provide positive evidence to suggest that problem-posing is a useful activity in the quest for improved problem-solving competence, particularly in a student's ability to explain how they...