English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

E-mail: shkang@ewha.ac.kr(Received July 21, 2013; Accepted September 9, 2013).   ‘1’   ‘  ’ ‘ ’       . ‘ ’ ‘ ’, ‘  ’, ‘  ’,  ‘  ’  .              3 .   6            .                . ,                6     .           .            6          . ,          6      .           . ,   ,            6     .                     ,          . ,            6     .              .              . :  , , ,   ,   ABSTRACT. The purpose of this study is to analyze the cognitive demands level of the description about ‘changes of state’and ‘kinetic theory’ on the ‘science 1’ textbooks by the 2007 revised curriculum. The three types of curriculum analysis tax-onomy have been used to analyze the cognitive demands level of those contents on the 6 kinds of ‘science 1’ textbooks. Themost higher level of cognitive demands about the concepts have been discussed here due to the focus of the concepts. The first, thecognitive demand level about ‘three states of substances’ depending on the motion of their particles in 6 textbooks is a earlyformal operational stage because of using by the application of kinetic theory. The second, the cognitive demand level about‘diffusion’ and ‘evaporation’ is a early formal operational stage, because the particles move around faster so they can change their posi-tion. The third, the cognitive level of the pressure and volume in a gas is a early formal operational stage because of explaining onlyphenomena in simple correspondence with formal model of kinetic theory. And simple functional relationships beyond linearon the graph of the volume and pressure of gas, the volume and temperature of gas is also a early formal operational stage.The fourth, the cognitive level of the energy of heat by a change of the state is also a early formal operational stage becausekinetic theory picture accepted as providing explanation by the change of the state. And functional relationships beyond linearon the graph of the explanation of boiling point of water in water is also a early formal operational stage.Key words: Change of state, Diffusion, Evaporation, Press and volume of gas, Volume and temperature of gas

journal of the korean chemical society

Analysis of the Level of Cognitive Demands about Concepts of the Changes of State and Kinetic Theory on 'Science 1' Textbooks in Junior High School (III)