ERIC Number: EJ822590
Record Type: Journal
Publication Date: 2009-Feb
Abstractor: As Provided
Reference Count: N/A
A Comparative Study of the Effects of a Concept Mapping Enhanced Laboratory Experience on Turkish High School Students' Understanding of Acid-Base Chemistry
Ozmen, Haluk; Demircioglu, Gokhan; Coll, Richard K.
International Journal of Science and Mathematics Education, v7 n1 p1-24 Feb 2009
The research reported here consists of the introduction of an intervention based on a series of laboratory activities combined with concept mapping. The purpose of this intervention was to enhance student understanding of acid-base chemistry for tenth grade students' from two classes in a Turkish high school. An additional aim was to enhance student attitude toward chemistry. In the research design, two cohorts of students were compared; those from the intervention group (N = 31) and a second group (N = 28) who were taught in a more traditional manner. Student understanding of acid-base chemistry was evaluated with a pretest/posttest research design using a purpose-designed instrument, the "Concept Achievement Test" (CAT) consisting of 25 items, 15 multiple choice and ten multiple choice with explanation. Alternative conceptions identified in the pretest were incorporated into the intervention, which thereby sought to move students toward views more in accord with scientific views for the concepts. Statistical tests indicate the instrument is reliable (with an alpha reliability of 0.81) and the analysis of the findings revealed statistically significant differences between the intervention and traditional groups with respect to conceptual understanding. Examination of student explanations and analyses of semi-structured interviews conducted with selected students suggest that the main influence was the laboratory activities. Analysis of the findings in the context of relevant literature that concept mapping in conjunction with laboratory activities is more enjoyable, helps student link concepts, and reduces their alternative conceptions.
Descriptors: Concept Mapping, High School Students, Intervention, Pretests Posttests, Achievement Tests, Chemistry, Laboratory Experiments, Comparative Analysis, Grade 10, Foreign Countries, Science Laboratories, Science Instruction, Scientific Concepts, Comprehension
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Publication Type: Journal Articles; Reports - Research
Education Level: Grade 10; High Schools
Authoring Institution: N/A
Identifiers - Location: Turkey