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ERIC Number: ED466372
Record Type: Non-Journal
Publication Date: 2001
Pages: 11
Abstractor: N/A
Reference Count: N/A
ISBN: N/A
ISSN: N/A
A Longitudinal Study of Junior High School Students' Perceptions of the Particulate Nature of Matter.
Margel, Hanah; Eylon, Bat-Sheva; Scherz, Zahava
This study investigates the changes in junior high school (JHS) students' conceptions of the structure of matter as they study the subject of "materials" using a new curriculum in Science and Technology. The new instructional method is based on a student-centered constructivistic model and on a "spiral" approach to the learning of fundamental concepts. The sample consisted of an experimental group of 1,084 JHS students who studied "materials" according to the new curriculum, and a comparison group of 218 JHS students who studied this subject according to a traditional curriculum. Questionnaires, in which students were asked to represent the structure of several materials in words and pictures, were administered five times during a 3-year period. The results indicate three main mental models regarding students' conceptions of the structure of matter: Model A--materials are continuous substances; Model B--substances consist of particles; and Model C-- substances consist of various molecules. The experimental group underwent a process of conceptual change regarding the structure of materials: More than 80% of the students moved from model A to model B, and 50% succeeded to move on to model C. (Contains 16 references.) (Author/YDS)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Israel