ERIC Number: ED022682
Record Type: RIE
Publication Date: 1967
Reference Count: N/A
A Charge Cloud Atomic Model for Junior High School Students.
Knorr, Sheldon Henry
Included in this study were (1) construction of a teaching unit on charge cloud atomic structure for junior high schools, and (2) testing of student achievement based upon use of this unit as compared to students using a conventional approach. A unit was constructed utilizing material judged to be appropriate at this level by a group of chemists. The unit involved collecting experimental data through laboratory experimentation, and construction of a model consistent with five postulates supported by the collected data. In the experiment 769 students were taught by eight teachers. Students were divided into three groups, each representing a different treatment. Conclusions drawn from the study were (1) the unit developed for the study was successful and may have continued usefulness, and (2) students using the charge cloud unit achieved higher in meeting the objectives of the unit than did those conventionally taught. (DH)
Descriptors: Achievement, Atomic Theory, Chemistry, Doctoral Dissertations, Grade 8, Instructional Materials, Physical Sciences, Physics, Secondary School Science
University Microfilms, 300 North Zeeb Road, Ann Arbor, Michigan 48103 (Order No. 68-6533, Microfilm $3.00, Xerography $9.90).
Publication Type: N/A
Education Level: N/A
Authoring Institution: Maryland Univ., College Park.
Identifiers: Cooperative Advanced General Science Test