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ERIC Number: EJ791517
Record Type: Journal
Publication Date: 2008-May
Pages: 16
Abstractor: Author
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0157-244X
Problem-Based Learning in 9th Grade Chemistry Class: "Intermolecular Forces"
Tarhan, Leman; Ayar-Kayali, Hulya; Urek, Raziye Ozturk; Acar, Burcin
Research in Science Education, v38 n3 p285-300 May 2008
This research study aims to examine the effectiveness of a problem-based learning (PBL) on 9th grade students' understanding of intermolecular forces (dipole-dipole forces, London dispersion forces and hydrogen bonding). The student's alternate conceptions about intermolecular bonding and their beliefs about PBL were also measured. Seventy-eight 9th grade students were stratified by cognitive levels and then randomly assigned to experimental (PBL, 40 students) and control (lecture-style teaching, 38 students) groups. Following a preparatory lesson where activation and remediation of existing knowledge occur, a pre-test was given, and no significant difference was found between the two groups of students (p greater than 0.05). After the instruction was completed, a post-test and also a questionnaire related to the quality of the problem, the teacher's role and group functioning were administered. Results from the post-test of both groups (p less than 0.05) and questionnaire showed that PBL is affective on students' achievement, remedying formation of alternate conceptions and also social skills.
Springer. 233 Spring Street, New York, NY 10013. Tel: 800-777-4643; Tel: 212-460-1500; Fax: 212-348-4505; e-mail: service-ny@springer.com; Web site: http://www.springerlink.com
Publication Type: Journal Articles; Reports - Research
Education Level: Grade 9
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A