The Development And Application Of The Redox Concept Inventory

Students' understanding of scientific concepts has been the core issue of the Science Education at the International Research. As a part of the scientific concepts, understanding and application of chemistry concepts are highly valued in the field of chemistry teaching. And misconceptions in the minds of students often hinder the understanding of the chemistry concepts. Chemistry teacher can test the true level of students' understanding of chemistry concepts by Concept Inventory. Redox reaction concept is an important and difficult reduction in high school chemistry. Through the development of the Redox Concept Inventory(abbreviated "ROXCI"), we can test students' misconceptions appearing in the redox reaction concept and determine students' level of understanding about the concept of redox reactions.Provide teaching suggestions and reference for teachers' teaching and students' learning.In this study, I reviewed about the misconceptions of redox reaction and the concept inventory in international science education. The theoretical framework is the concept elaboration theory. By the analysis of the concepts of redox reactions, i draw redox reaction concept elaboration network, combined with triple characterization and taxonomy Bloom cognitive goals, divided the level of redox reactions related concepts. Using classical surveying method and item response theory(Rasch model) modified redox reaction concept inventory, in order to obtain ROXCI with a higher quality, and suitable for domestic local culture. Based on the application results of ROXCI, I analyzed students' level of redox concepts' understanding and student misconceptions' source.I provided the teaching suggestions, and formed ROXCI with a set of "development- application- instruction".The thesis consists of eight parts as follows:The first part illustrates the value and significance of the topic of reason and research.The second part reviews the redox reaction misconceptions and related research of concept inventory's development, focusing the general flow of the concept inventory and the theme of redox misconceptions, clear the validity of the ROXCI to check the level of understanding.The third part is the study's purpose and mission.The fourth part is that, based on the concept elaboration theory and combined with triple characterization and taxonomy Bloom cognitive goals to construction the conceptual understanding level of redox reactions.The fifth part is the development of ROXCI. By semi-structured interviews and open questionnaire, actual exploration the misconception of redox reaction, develop the initial ROXCI and assess it by response theory(Rasch model) and classical surveying. Based on the assessment results to correct the initial ROXCI, then used response theory(Rasch model) and classical surveying to assessment the new ROXCI in order to form a higher quality and suitable for domestic local culture.The sixth part is that, through data analysis and discussion of the ROXCI's application to obtain 2 functions, one is to check the student's misconceptions; the second is to determine thelevel of students' understanding.Part VII, the conclusions and recommendations of teaching. The results showed that the ROXCI in the project can be used to test students' understanding of the concept of redox reactions, diagnose student misconceptions.Part VIII, based on the study of this paper, we propose a further problem to be solved.The innovation of this study is: based on student misconceptions in redox reactions, I developed ROXCI for domestic high school students and devised the level of understanding of the redox concept. I provide an effective way to chemistry teachers for high school to assess students' understanding of redox concept.