Kimyasal Gösterimlerin Genel Kimya Ders Kitaplarında Kullanımı

Abstract

The purpose of this study was to analyze characteristics of chemical representations in electrochemistry unit in General Chemistry textbooks. Content analysis of 17 General Chemistry textbooks was conducted using an existing rubric, which includes criteria for analysis of representations in textbooks, was utilized. Results indicated that total number of representations was 289 and average number of representations in a page ranged between 0,11 and 1,22. Most of the representations were used during teaching of the topic (in text) while number of representations used in assessment part was less. With regard to type, hybrid and multiple representations were utilized most, and macroscopic and mixed representations were the least frequent representations. More than half of the representations had explicit surface features and were completely related and linked to the text. Most of the representations' captions were appropriate. Majority of multiple representations had sufficient links between their subordinates.