Asgedom, Amare PhDAssefa, Shimeles2022-03-282023-11-182022-03-282023-11-182012http://etd.aau.edu.et/handle/12345678/30942The purpose of this study is to develop and test the symmetrical-integral model of conceptual change Development of Conceptual change models is a growing area of research in science education.A survey of conceptual change research helped me develop a new model of conceptual change which I called . The spiral Cognitive-Sociocultural Model 0f Conceptual Change, This new conceptual change model was tested on Grade 12 physical thermodynamics and chemical thermodynamics units teaching dressed with my hybrid method of Reasoned persuasive Collaboration from a class of Critical Analytic pedagogies.This model,unlike previous models requires change in both rational/knowledge and extra rational or motivation, affection, and other s socio-cultural factors.enThe Symmetrical-Integral Model of ConceptualThesis