| With the rapid development of computer technology,information technology has become an inevitable trend to solve the problem of modern education and teaching.The difficulty of knowledge grasp as an important part of the daily teaching work of teachers can be more objective and reasonable arrangement of teaching time,scientific division of curriculum knowledge of the difficulties,but in the investigation found that the traditional knowledge difficulty division method mainly in the course of teaching The difficulties and difficulties of the knowledge given in the outline can not meet the daily teaching needs of the young teachers who lack experience,and there is a gap between the young teachers who lack experience and the teachers 'and their students' understanding of the difficulty of a certain knowledge problem.The purpose of this paper is to develop an online test tool which is difficult to classify the knowledge of senior middle school information technology young teachers,and focus on the realization of knowledge difficulty classification function.The thesis mainly focuses on the classical theory of test,the theory of project response and the classification theory of educational goal of Bloom.Firstly,it analyzes the characteristics of high school information technology curriculum,the division of knowledge module and the characteristics of high school information technology entrance examination.In the knowledge difficulty grading tool,the choice of the question bank takes into account the effect of the level of the topic on the difficulty of obtaining the knowledge point.Based on the theory of classification of educational goals in Bloom's cognition,we choose the same proportion of knowledge,understanding and application,The four cognitive level of knowledge corresponding to the subject of knowledge difficulty classification.Secondly,by using the method of data analysis,the difficulty grading algorithm of high school information technology difficulty classifier is designed.The algorithm can obtain the knowledge difficulty coefficient of the corresponding topic according to the frequency of answer and wrong answer.And the main functions of high school information technology difficulty classification tools are described in detail,and the main program realization code and interface diagram are given.Finally,the high school information technology knowledge difficulty classification function and effectiveness of the test,in the test phase,I invited Guiyang City and Harbin two districts of high school students in the online answer,compared to high school information technology curriculum knowledge difficulty grading tool Geography,and also invited to familiar with high school information technology courses of educational technology graduate students as young teachers and teachers in Guiyang City,respectively,given the difficulty of classification of knowledge,compared with graduate students and expert teachers between the different and graduate students and machines measured The difference between the degree of difficulty classification,discussed the use of this study knowledge difficulty grading tool can shorten the difference between graduate and expert teachers percentage.In this paper,the skills of the senior high school information technology curriculum is difficult to use the JSP technology as the technical support,with the user login,the question bank management,online answer,automatic review,wrong view and difficulty coefficient view and other functions,and through testing,first,The accuracy rate of the knowledge difficulty class is 66.67%.Secondly,the young teachers and the high school students who obtained the system through the system have difficulty in the knowledge difficulty degree The difference of knowledge is 50%.In this study,the information technology difficulty classification tool can shorten the difference of 16.67% between young teachers and teachers,that is,the rate of increase of knowledge difficulty among young teachers is 16.67%. |
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