The Design And Implementation Of Personalized Computer Assisted Instruction

Computer Assisted Instruction Personalized(personalized computer assisted instruction system,PCAI)is the mainstream way of teaching system.Based on computer technology and network technology,this technology can establish a platform for information exchange and resource sharing between teachers and students.It is conducive to the realization of the teaching system which is dominated by students.But most of the current PCAI system is based on the forum form to complete the teaching task,the supervision of the teachers is not enough,the students learning is free,the teaching effect is not good.In view of the above problems,the research on the PCAI mechanism and the personalized teaching platform of network teaching has theoretical significance and practical value.The work and contributions of this dissertation are as follows:Theory,the introduction of workflow technology,PCAI,construct a personalized teaching environment based on Web,and supporting teachers build the personalized teaching process,students according to the requirements of the process involved in learning the specific activities,citing relevant learning resources,and other students with the completion of learning tasks.Under the environment of network teaching teachers to of a large number of students and control learning process,puts forward a solution based on workflow of teaching process planning,teachers can use the workflow designer to complete the flexible definition of teaching process,and in the workflow node associated with the teaching of sharing learning resources,in order to facilitate the reuse.Teaching process model definition can choose different teaching strategies for dynamic modeling and scheduling,with strong flexibility,but also can reuse generic learning activity nodes and student’s role nodes,a combination of both,together to complete the flexible definition of a complete process of teaching.For learning in the network environment,teachers cannot be like classroom teaching as face to face communication problems the students,put forward and design a personalized teaching model based on workflow technology,and its storage in personalized teaching management strategy of database,personalized teaching management strategies and contains some supervised learning rules,including learning progress collaborative and cooperative content,student behavior supervision,through the definition of different rules,supervise and guide students according to the correct learning process completed individualized teaching task.Workflow based on students’ learning status monitoring and analysis,respectively to student’s individualized teaching emotion,learning objectives,learning effect,produced in the process of cooperation and conflict analysis,timely solve the problems appeared in the process of personalized teaching,initiative of students learning process to remind and correction.Practice,carries on the demand analysis to the PCAI platform system according to the software engineering theory proposed designed the overall framework of the system of network teaching PCAI platform,and the concrete realization of the main function of a network teaching PCAI platform prototype system by using the Microsoft WF technique.The system platform for learning the definition of workflow provides the foundation to realize the separation of definitions of process and a supervised learning procedure learning,help to improve the students’ enthusiasm for learning,enhance the learning effect;at the same time,the teacher through the definition of workflow learning and supervision rules,improve efficiency of individual teaching process.