The Design And Realization Of Word-by-word And Line-by-line Presentation Method Of Courseware

With the rapid development of computer touch technology,"computer touch technology + education" has produced many new classroom multimedia teaching products,such as projection electronic whiteboard,LCD touch integrated electronic whiteboard,nano blackboard.With the promotion of these products for many years,they have been applied to classroom teaching in large,middle and primary schools.With the application of these products in classroom teaching,some deficiencies have gradually been found in use.For example,the courseware preparation time is long,the operation is cumbersome,and the function is complicated.Because the electronic blackboard presents too much information to the students,the problem of "filling the classroom" is easy to appear in the teaching effect.Through the analysis and research of the above-mentioned "full house filling" problems,for ppt,pdf,word and other document courseware and paper version projection teaching courseware,this paper designs and implements an effective method to control the courseware word-by-word and line-by-line.This method can control the presentation speed of various document courseware,make the courseware used in deduction,certification,analysis and other classroom teaching,and can effectively solve the problem of "full house irrigation" exposed by the multimedia teaching equipment in the past.This method is based on the research and implementation of an intelligent electronic blackboard system.The main content includes the analysis and research of the causes that lead to the "full house irrigation" problem,and the research of the existing solution methods.On this basis,the method of presenting the teaching courseware word-by-word and line-by-line is designed and implemented.Different types of teaching document courseware pages are transformed into a fixed picture format suitable for display and writing in classroom teaching.The combination of vertical blackboard and horizontal blackboard is used to cover the pictures.The covered pictures are segmented and analyzed to obtain the line position information.Finally,the horizontal blackboard and vertical blackboard are controlled to move to realize the word by word presentation of teaching courseware.This method is realized by document typesetting,camera image capturing,screen capturing,image covering and moving,image segmentation and other technologies.It can truly simulate the writing and explanation process of teachers' class word by word and line by line,and achieve simple operation and convenient application.The word-by-word and line-by-line presentation method studied in this paper is a successful innovation and attempt to use computer technology to solve the "full house" problem in modern multimedia teaching.It has certain practical significance for the modern multimedia equipment to be efficiently applied in various classroom teaching environments.