Research On The "online + Offline" Hybrid Chemical Experiment Teaching Model From The Perspective Of "Internet + Education

With the advent of the information age,the traditional chemical experiment teaching mode has also ushered in new opportunities and challenges,and how to use the network to reform chemical experiment teaching has also been a research hotspot in recent years.Based on the background of "Internet + education",this paper constructs a "three-stage,eight-step" hybrid chemistry experimental teaching mode of "online + offline" through literature analysis and questionnaire survey methods,combined with ADDIE model theory(Analysis),design,development,implementation,and evaluation.This teaching model is mainly used in the teaching of chemistry experiments in secondary schools.This teaching mode is based on the traditional "offline" chemistry experiment teaching,focusing on the content screening and construction of the platform in "online" teaching,so as to integrate the Internet into the traditional chemistry experiment teaching,in order to achieve the purpose of improving the quality of teaching.The construction of the online teaching platform in the "online + offline" hybrid chemistry experimental teaching mode of "three stages and eight steps" is realized through virtual laboratories.The virtual laboratory largely restores the operation process and experimental phenomena of the real chemistry laboratory,and its use conditions and software difficulty are also suitable for the teaching requirements of middle school chemistry experiments.The "course resources" and "online tests" in the platform can be directly provided to students with chemistry experiment preview resources and self-testing methods,and the background data can be directly provided to teachers for the heavy,difficult and learning situation analysis of offline experimental teaching.Therefore,the research teaching mode has more advantages than the traditional offline chemistry experimental teaching mode: teachers can use the data obtained from online teaching to formulate experimental designs for offline experimental teaching that are more in line with students’ experimental courses,so as to better promote students’ learning and mastery of experiments and their knowledge points;In addition,the construction of an online experimental platform also provides a strong guarantee for the successful completion of teaching tasks when offline teaching cannot be carried out normally,and the virtual laboratory can continue to be used for secondary school chemistry experimental teaching.Through a questionnaire survey of two junior high schools and two high schools in G City,Ningxia,this paper determines that the difficulty of chemical experimental teaching is divided into three dimensions: simple,difficult and interesting,and then analyzes the teaching problems existing in experimental teaching according to the questionnaire analysis of the research schools,and uses the "online + offline" hybrid chemistry experimental teaching mode constructed to construct "three stages and eight steps" to propose corresponding solutions and then design and implement teaching.After the teaching practice in W Middle School in G City,this paper analyzes the teaching effect of interviews with W middle school teachers,and finally concludes that the "online + offline" hybrid middle school chemistry experimental teaching mode constructed with "three stages and eight steps" has strong applicability and certain promotion value in middle school chemistry.