View : 110 Download: 0

Analysis of the Level of Cognitive Demands about Concepts of Ionic Compounds and Molecule on Science 2 Textbooks in Junior High School (II)

Title
Analysis of the Level of Cognitive Demands about Concepts of Ionic Compounds and Molecule on Science 2 Textbooks in Junior High School (II)
Authors
Kang S.Bang D.Kim S.-J.
Ewha Authors
강순희
SCOPUS Author ID
강순희scopus
Issue Date
2012
Journal Title
Journal of the Korean Chemical Society
ISSN
1017-2548JCR Link
Citation
Journal of the Korean Chemical Society vol. 56, no. 6, pp. 739 - 750
Indexed
SCOPUS; KCI scopus
Document Type
Article
Abstract
The purpose of this study is to analyze the cognitive demands level of the description about 'pure substance and mixture compound', 'ionic compound', 'molecule' on the 'science2' textbooks by the 2007 revised curriculum. The three types of Curriculum Analysis Taxonomy have been used to analyze the cognitive demands level of those contents on the 6 kinds of 'science2' textbooks. The first, the cognitive demand level about 'pure substance and mixture compound' on many textbooks is a late concrete operational stage because of class inclusion and hierarchical classification. And the descriptions as 'pure substance is conserved even when mixed with other pure substance' is a early formal operational stage. The second, the cognitive demand level about 'ionic compound' and 'molecule' is a early formal operational stage, because of "Formal modeling is the indirect interpretation of reality by deductive comparison from a postulated system with its own rules" and "Atoms have a structure". The third, the terms as 'ionic bonding', 'ionic compound', 'chemical formula', 'covalent bonding', 'covalent compound', and 'molecular formula' have been used on many 'science2' textbooks. Those terms would be used later on 'chemistry I' and 'chemistry II' in senior high school but not even 'science3' and 'science'.
DOI
10.5012/jkcs.2012.56.6.739
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE