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ERIC Number: ED316415
Record Type: Non-Journal
Publication Date: 1989-Apr
Pages: 140
Abstractor: N/A
Reference Count: N/A
High School Students' Concepts of Acids and Bases.
Ross, Bertram H. B.
An investigation of Ontario high school students' understanding of acids and bases with quantitative and qualitative methods revealed misconceptions. A concept map, based on the objectives of the Chemistry Curriculum Guideline, generated multiple-choice items and interview questions. The multiple-choice test was administered to 34 grade 12 students who had completed the grade 11 advanced chemistry program. Eight of these students, from three levels of chemistry achievement (high, medium, and low), participated in 40-minute clinical interviews and follow-up interviews. Analyses of the quantitative and qualitative data revealed that the students held idiosyncratic conceptions of acids and bases which did not coincide with the concepts found in the curriculum guidelines or prescribed texts. The students in this exploratory study retained their everyday concepts of acids and bases and grasped few of the scientific concepts. More instruction time may help students to develop understanding of scientific concepts such as ions and pH. This document includes an introduction, discussions of methods and analyses, cases and concept maps, findings and a list of 39 references. Appendices include a copy of the multiple choice test, and a copy of each of the interview tasks. (Author/CW)
Publication Type: Reports - Research; Tests/Questionnaires
Education Level: N/A
Audience: Practitioners; Researchers
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Canada