National Journal of Advanced Research


ISSN: 2455-216X

Vol. 5, Issue 1 (2019)

Diagnosis and remediation of senior secondary students’ misconceptions in quadratic equations using graphical method in Yenagoa Local Government Area, Bayelsa State

Author(s): Onowighose ME, Charles-Ogan GI
Abstract: The study diagnosed and remediated senior secondary students’ misconceptions in quadratic equations using graphical method in Yenagoa L.G.A., Bayelsa State. Quasi-experimental research design was used. The population of the study comprised 5840 senior secondary students in Yenagoa Local Government Area of Bayelsa state. 123 students {69 males and 54 females} were selected from four schools using purposive sampling technique. The research instrument was Performance Test on Quadratic Equations using Graphical Method (PTQEGM). The instrument was validated by three experts in Measurement and Evaluation as well as researchers’ supervisors. The reliability of PTQEGM was determined by split-half method using Spearman-Brown Correlations with an index of 0.86. Frequency count, percentage, mean and standard deviation were used to answer the three research questions, while ANCOVA was used in testing the two hypotheses formulated for the study at 0.05 level of significance. The result revealed the areas (Inequalities, substitution, rules of signs, mensuration, coordinates of numbers, factorization, line of symmetry and gradient) of students’ misconceptions when solving quadratic equations using graphical method. It also proffered ways to remediate (amend) misconceptions students have by using the key concepts of quadratic equations using graphical method with the lower-order concepts put into considerations. Based on the findings of the study, it was recommended that students and teachers should be familiar with the lower-order concepts of the key concepts of quadratic equations using graphical method for effective performance. Also, Mathematics teachers should diagnose their students’ misconceptions and lay emphasis on those areas when teaching to minimize misconceptions which lead to errors.
Pages: 12-17  |  423 Views  138 Downloads
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