Research On The Construction Of Information Technology Teacher Knowledge Evaluation Scale Under The Background Of Education Informatization 2.0

With the development and application of artificial intelligence,big data,cloud computing,virtual reality and other emerging technologies in education,it will drive the advent of education information 2.0 era.Under the background of education informatization 2.0,the content system,teaching methods and teaching environment of information Technology course are facing many subversive changes,which put forward new requirements for teachers’ knowledge and ability:1.The application of intelligent technology in the teaching of information Technology causes new ethical problems in teaching.Teachers need to have certain knowledge of information ethics to cope with the ethical challenges in the teaching mode of human-computer cooperation.2.The country increasingly attaches great importance to artificial intelligence education,and it has been included in the teaching content system of information Technology,so teachers need to update their knowledge of subject content;3.The learning analysis technology,adaptive learning technology and smart classroom based on cross-media,big data and intelligent technology have an impact on the teaching knowledge of information technology teachers,so it is imperative to reform the teaching knowledge of information technology teachers.Therefore,based on the comprehensive combing of the constitutive dimensions of TPACK,the depth measurement scale of TPACK and the information ethics of information technology teachers,this study initially constructed the information technology teacher knowledge evaluation index system,compiled question banks,conducted two rounds of expert consultation,and formed the first draft of the information technology teacher knowledge scale.In addition,this study adopts systematic quantitative research method to analyze the reliability and validity of the scale,so as to optimize the reliability and validity of the scale.The specific research process is as follows.First,by combing the domestic and foreign related research about TPACK composition and measurement,and the knowledge of information technology teachers form the analysis of the connotation,determined to TPACK consisting of seven dimensions and information ethics "" information technology teachers evaluation dimensions,for each evaluation dimensions corresponding entry,eventually initially formed evaluation index system of information technology teachers’ knowledge,On this basis,the expert consultation questionnaire of information technology teacher knowledge evaluation index system is constructed.Then,the expert consultation method is used to screen out the items with good content validity.Eleven experts in educational technology,information technology teachers with senior titles and information technology teaching and research staff were invited to form an expert group to carry out two rounds of expert consultation.The experts evaluated each dimension and corresponding items of the information technology teacher knowledge evaluation system.After two rounds of expert consultation,each item in the index system of information technology teacher knowledge evaluation has high item content validity（I-CVI and K* values are both greater than 0.74）.Finally,the "It Teacher knowledge Scale under the background of Education Informatization 2.0"（the first draft of the scale）was distributed and collected among teachers in front-line primary and secondary schools,and preliminary data analysis and processing were conducted.According to the degree of differentiation of entries in the index,index of factor analysis,internal consistency reliability index of the first draft scale items,delete the degree of differentiation,poor reliability and validity for the entry,eventually build 2.0 under the background of education informatization evaluation index system of information technology teachers’ knowledge and the education informatization 2.0 under the background of information technology teachers’ knowledge inventory.In this study,the information Technology Teachers’ Knowledge Evaluation Scale under the background of Education informatization 2.0was constructed to provide reference and suggestions for researchers engaged in the professional development of information technology teachers,and to put forward a set of operational evaluation scales for information technology teachers in primary and secondary schools to evaluate their own knowledge.