Research On Teaching Practice Of Mis-conception Change Of Chemistry In Senior Middle School

The concept of chemistry plays an important role in high school learning.In the process of learning concepts,students can incorporate the knowledge they are learning,various things and phenomena in life,through certain connections,into their own cognitive system,thereby constructing their own conceptual system of chemistry science.The mastery of scientific concepts can help students to more easily and effectively solve the problems they encounter,thereby developing their abilities in various aspects,which will further promote students to have a more comprehensive and in-depth understanding of chemistry and master chemistry.But the learning of chemical concepts is not simple.Many students can recite the definitions of related concepts,but they cannot apply the knowledge they have learned to solve problems.This shows that they have not really formed scientific concepts and have not grasped the essence of the concepts.The existence of mythical concepts is an important reason that hinders the formation of scientific concepts.This thesis mainly researches and reviews the current research status of myth concepts and concept transformation teaching,as well as the characteristics of chemistry subject concept learning.Through the pre-design test papers,the author explored the cognitive level of "oxidation-reduction reaction" related knowledge of some high school students after the preview,explored the myths and concepts that existed in the students,and analyzed the causes.Based on cognitive development theory,meaningful learning theory,and constructivist learning theory,teaching methods and strategies are used to transform teaching methods and strategies for teaching design and implementation.After completing the "oxidation-reduction reaction" teaching,use the compiled post-test papers to test the two classes to test the effect of the concept change teaching.Through practice and data analysis,it is found that the use of concept change teaching strategies and methods in classroom teaching can effectively help students transform myth concepts to form scientific concepts,and help enhance students' sense of efficacy and stimulate students' interest in learning.