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ERIC Number: EJ1177873
Record Type: Journal
Publication Date: 2012
Pages: 15
Abstractor: As Provided
ISSN: ISSN-1029-8457
Chemistry Lecturers' Perceptions of "Critical Barriers" to Successful Solving of Acid-Base Titration Problems
Okanlawon, Ayoade Ejiwale
African Journal of Research in Mathematics, Science and Technology Education, v16 n3 p390-404 2012
Using constructivist theory and knowledge components as a theoretical framework, this paper reports lecturers' perceptions of prior knowledge needed for solving a sample acid-base titration problem involving the neutralization of a conjugate base of a weak acid with a strong acid. Twelve participants were engaged for the study. Their participation in this research was voluntary. Semi- structured interviews were employed as the main instrument for collecting statements about prior knowledge required for solving a sample acid-base titration problem. The transcripts of the interview session were analysed using coding categories. Two types of coding were employed, namely: (1) pre-coding (applicable to the close-ended questions) and (2) researcher-generated coding (applicable to the open-ended questions). These techniques were trialed and found to elicit suitable data in the pilot project. Two independent raters coded the complete transcript of individual lecturers and reliability between the two coders was determined to be 86% using simple agreement analysis. Following application of the qualitative coding scheme to the data collected, frequency counts for each item in the four different knowledge categories (factual, conceptual, procedural, metacognitive) were generated and percentages computed. To help illuminate this analysis, different perceptions of prior knowledge needed for solving an acid-base problem used in this study were reported as a diagrammatic representation. Implications for chemistry teaching are also discussed.
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Nigeria
Grant or Contract Numbers: N/A