Application Of Online And Offline Mixed Teaching Mode In Senior Middle School Chemistry

In the context of online education during the period of educational informationization and the epidemic,it is found that online learning and traditional offline teaching models are too single.Therefore,in order to meet the diverse learning needs of students,this paper attempts to combine traditional teaching methods The blended teaching mode that combines the advantages of online learning and the advantages of online learning is used in high school chemistry teaching.This research is divided into six parts in total.Part Ⅰ:Introduction.From the background of educational informationization,the requirements of the new curriculum standards,and the needs of middle school chemistry,it explains the research significance,research content and research ideas of this article.By reviewing and analyzing the current research status of online and offline hybrid teaching models at home and abroad,we found that online and offline hybrid teaching models have become a trend of today’ s education reform,but there is less research in the field of chemistry teaching,especially There are fewer relevant application practices in the middle and high school stages,so this paper,designing cases and practicing,provides a reference for high school chemistry teaching.Part Ⅱ:theoretical basis and concept definition.Through analysis of a large number of documents,it is found that the online and offline hybrid teaching model is supported by constructivist learning theory,humanistic learning theory and autonomous learning theory.Then define the concepts of online learning,offline teaching,and blended teaching models in this thesis.Part Ⅲ:Model construction based on online and offline hybrid teaching mode.First,through the questionnaire survey method to understand the basic situation of students,interest in learning chemistry,online learning efficiency,online learning methods and practical intentions of blended teaching mode;then use interview methods to learn about teachers online learning The understanding of the situation,the mastery of information technology and the acceptance of the online and offline hybrid teaching model showed that during the epidemic,single online learning has many shortcomings,and the online and offline hybrid teaching model just makes up for this shortcoming.So apply it in high school chemistry.Based on this result,research the teaching principles and teaching evaluation of the online and offline hybrid teaching model,and construct the teaching process.Part Ⅳ:Case design based on online and offline hybrid teaching mode.On the basis of reference to a large number of documents,combined with the teaching principles and teaching process of the online and offline hybrid teaching mode,choose the "Basic Procedures for Studying the Properties of Matter" in the Compulsory Course 1 of Luke Edition Chemistry to explore the oxidizing properties and properties of iron and its compounds.The three cases of " reducibility"and " carbon diversity" are designed and practiced.The teaching is divided into three parts.In the online preparation stage,teachers publish learning tasks and learning resources through Dingding,and students achieve online learning through independent learning.In the offline teaching stage,teachers design teaching content based on online problem feedback,and students deepen their knowledge to achieve offline teaching goals;in the online consolidation stage,teachers publish learning resources and live explanations in Dingding based on student feedback.Students consolidate knowledge and achieve online consolidation goals.Part Ⅴ:Implementation effect evaluation.Through examination paper testing and questionnaire survey methods,the practical effects of online and offline hybrid teaching mode in high school chemistry teaching are analyzed.The results show that after the online and offline hybrid teaching model is applied,the experimental class has higher scores than the control class and the number of high-scoring students is more distributed.The questionnaire survey found that the online and offline hybrid teaching model is beneficial to improve students’ learning efficiency,stimulate students’ interest in learning chemistry,and improve their independent learning ability.Students are willing to apply the online and offline hybrid teaching model in high school chemistry classes.Part Ⅵ:Research conclusions.Through the research and practice of the hybrid teaching model,the following conclusions are drawn(1)the online and offline hybrid teaching model is feasible and effective;(2)the online and offline hybrid teaching model meets the development requirements of the new curriculum standard;(3)The development of online and offline hybrid teaching models can promote the improvement of students’ autonomous learning ability;(4)The online and offline hybrid teaching models can improve teachers’ teaching efficiency.