"Heaven and Earth''distance learning network support system of teaching quality assessment and analysis

[Paper Keywords] world of fuzzy distance learning teaching quality assessment
[Abstract] Seven Shanghai Jiaotong University jointly developed a new type of university Education resources in remote eastern sharing service system to support online teaching, Distance Education through the Institute of Ningxia University for seven years running, the effects of their remote network for network teaching survey, collect and analyze data to establish the fuzzy evaluation model, comprehensive evaluation using computer analysis, the number of remote network effects and quality of Education and teaching valuable conclusions.

I. Introduction
2002, led by the Shanghai Jiao Tong University, United Xi'an Jiaotong University, Zhejiang University, Ningxia University, Tibet University, the seven universities to create a "multi-university cooperation in the West" as a model, "elite class in real time" as the way " Inter-school teaching support, management system, "as the basis, satellite + LAN" World Network "Distance Education technology platform supporting the new Educational resources for the Eastern Sharing System, the results of the 2005 National Teaching Achievement Award. The Ningxia University System Distance Education through seven years of operation, in helping enhance the quality of the training in Western universities play an important role. But the "world network" system of teaching support services performed by remote network quality and effectiveness of teaching has always been our great concern. through seven years of the "world network" effect of distance learning tracking survey, and survey data related to the evaluation model and quantitative analysis of factors related to teaching effectiveness and impact of the relationship between the evaluation based on fuzzy theory analysis, we found some common problems related to distance learning valuable conclusions.

Second, based on fuzzy theory of the "World Network" teaching effectiveness evaluation system
(B) of the fuzzy evaluation theory outlined
Fuzzy mathematics is the study of scientific phenomena and deal with fuzzy, it reveals the difference between the intermediate objective things caused by the transition of a uncertainty. At present our results related to the evaluation of Distance Education programs are significantly nonlinear systems, fuzzy systems is obvious. to apply the theory of fuzzy evaluation of teaching effectiveness evaluation of Distance Education among the one hand, fuzzy reasoning can make use of its capabilities to meet the effects of distance Education to assess their own fuzzy features, and the other With one hand, perceptual experience can usually evaluate the effect of teaching the process of distance Education into concrete quantitative data parameter fuzzy information processing to improve the assessment of scientific and intelligent level, making the assessment more fair and reasonable.

Now, the use of fuzzy mathematics to establish "world network" effect of distance education evaluation model.

Let the domain U: {u, u, ..., tl,} for the index or set of evaluation factors, let V = {v., v, ..., v} is the set of evaluation grades, each determined from the evaluation object u to the fuzzy relationship between V R, which is a matrix:

The fuzzy relation matrix, the object still can not make a complete evaluation of the assessment, we introduce a fuzzy set on U A, called the set of weight distribution or weight.

At the same time the introduction of a fuzzy set on V B, called the decision set, or evaluation set.

Order: B = A port R
Where: "I" is the operator symbol, the algorithm, denoted by M. said the formula is fuzzy transformation, A input, B as an output. If R is known. By the input and output can be obtained in any other . A value is calculated using excessive weighting. B of the request method, you can use the following steps:
R B = A port

The B value of the order of their size, you can determine the impact of "world network" effect of distance education value of comprehensive evaluation of factors.

(B) "World Network" Evaluation of distance learning elements
1. Evaluation of learners
Learners are learning the subject. "World Network" distance education learners are college students, teaching students the main purpose is to provide ways of learning, the famous eastern university teaching resources and learning. The one hand, through the evaluation of a real understanding of learners learning process, learning to make the network the other hand, evaluation and feedback. specifically includes four aspects:
- Web Interactive Level: learning biggest weakness is the lack of direct communication between teachers and learners so that learners loneliness. Therefore, the "World Network" system, using the BBS, online forums, E-mail, face to face in the form tutor to strengthen communication with the learners.

- Network question: in the long-distance learning through doubt, the learner can learn more in-depth understanding of the subject. Question should include: the number of questions to ask, visit the number of problem-solving, and the number of times to provide a solution, which information reflects the learners understanding of the knowledge and active learning parameters.

- Internet Resources: learners use of the rich curriculum resources and Internet resources for learning is a major advantage of distance learning. Curriculum resources, including online teaching platform and its related issues of resources and electronic libraries, Internet resources, including the use of browser and Web search engine to browse and query the network resources.

- Operating and Examination: Assignments are based on the layout and marking the completion of learners work to understand their usual mastery of knowledge points to the state curriculum, the exam is a learning situation the learner stage testing and evaluation. Evaluation system assignments and examination results will be based on feedback from the learners to learn the next step suggestions for improvement.

2. The evaluation of teachers
Teaching environment in the remote network, the teacher's role is different from traditional classroom teaching role of teachers. Network teaching teachers to become learners in the teaching and counseling, and not the direct knowledge and information transfer, knowledge transfer of information from the network to complete. network teaching methods can be synchronized, it can be asynchronous, teachers can be divided into overseas speakers and local teachers, tutors, learners are not just limited to situations in the classroom. Therefore, the teaching of remote network the evaluation of teachers, including the following four aspects:
- Organization of teaching activities: teaching activities of teachers in the network specifications and timely adjustments to the learning behavior. In synchronous online teaching, it is necessary to teaching science content, expressed in rigor, have effect after long distance transmission a specific demand. asynchronous online teaching was mainly on the transfer of courseware quality, format and broadcast the results to be strict.

- Degree of student interaction: remote teaching, we must attach great importance to the question of teachers and learners, learners and learners to ask the interaction and dialogue, or learners loneliness, so that online teaching has become passive and single- to communicate, so that learners learn the loss of confidence and interest in learning. network interaction and communication are: timely exchange of remote classroom, teaching forum to exchange, E-mail questions and answer questions, guidance teachers face to face, discussions and other forms of remote video .

- The provision of learning materials: remote network teaching, teachers responsible for uploading to the effective assistance related courses and study guides learning resources, such as reference, teaching reference books, web search keywords and related programs information. Accordingly, the assessment system Teachers can control the content of teaching and knowledge to grasp the extent updated, but also understand the need for teachers in the provision of information on the extent of learners.

- Learners learn and test scores: results from the work of students, usually composed of test scores and test scores, which is the network of teachers teaching one of the indicators to evaluate the effect, but not as the only evaluation criteria.

3. Evaluation of teaching content
Remote network teaching content is a broad concept, not only refers to the network courseware for teachers, including teachers, teaching aids provided information and Internet information. On the evaluation of courseware, including: the content and quality, structure and navigation, training and feedback system teacher-student interaction system four aspects.

- Content and quality: evaluation points are: Courseware goal is clear, is suitable for remote teaching, whether learners can stimulate interest and lead to deep discussions, courseware content is updated in a timely manner. We demand courseware for learners the number and frequency as the number of evaluation indicators.

- Structure and Navigation: To evaluate the key points are: teaching navigation design is reasonable, page links, and use is easy, with academic records and time statistics, pilotage functions, and will not learners get lost.

- Practice and feedback: courseware designed to help learners practice is to develop and accumulate knowledge, skills, attitudes and emotions to improve learning and training, feedback on the analysis of practice can help teachers improve their teaching and to be learners incentives.

- Teacher and learner interaction: students and teachers in teaching activities in a timely manner through a variety of media interaction, can help teachers improve the teaching level, also enables the learner to the learning points and a deeper understanding of difficult. The teacher evaluation system Health interactive participation statistics.

4. Supporting platform for teaching and teaching evaluation of service system
For remote network teaching, the teaching service system supporting platform and teaching the impact of teaching on the network although the non-direct, but the teachers teach and learners learn is also very important. Specific evaluation of the content side there are four aspects: platform technology systems, platforms, teaching system, the services provided to teachers, students provide.

- Platform of the technical system: the learning platform itself is to provide teaching activities for remote network technology platform, platform security, data transmission reliability and stability are very important. In addition, the confidentiality of user information, the teaching timeliness of data backup should pay attention to.

- Platform of the education system: "World Network" system provides the functionality very comprehensive support network teaching platform, I am teaching hospital established a relatively sound management mechanism, a full-time technical staff responsible for the platform management and maintenance, to ensure the security of remote network education stable operation, and teachers and teaching platform for students to use guide. reposted elsewhere in the Research Papers Download http://www.hi138.com - services provided for teachers: teaching system designed for teachers and teaching strategies information and templates, providing convenient for teachers to organize teaching activities and students interact with technology support for teachers to evaluate students and the system can refer to the quantitative criteria.

- Provide support to students: teaching platform provides the use of guidelines, to provide learners learning methodologies, the use of technical measures to ensure that students and teachers and other learners in the interaction and communication, practical activities for learners to provide technical and problem solving support, providing learners self-evaluation and testing of the reference gauge.

Third, the evaluation process
"World Net" effect of the evaluation of distance learning is a dynamic process, even though the elements of the evaluation of various evaluation methods vary, but have been evaluated before the preparation, evaluation of the implementation, data processing and information feedback in four stages.

(A) Evaluation of preparation
First determine the objects involved in teaching evaluation and assessment goals. Second, select the evaluation of information sources and information processing methods. Sources of information in a systematic quantitative evaluation, rating scale, teaching logs, records and other feedback. Finally, based on fuzzy evaluation model, formation questionnaire database, evaluation index system of libraries and library projects, including evaluation index system of libraries and library project is the participation of experts and organizations set up with, including the evaluator, the evaluation object, the evaluation categories, evaluation of content, evaluation of projects and the weight . as shown in Figure 1.


(B) evaluate the implementation of the
"World Net" Evaluation of distance learning is done through the network test, learners in the teaching platform to publish on the evaluation tables, filling out evaluation criteria and rules and requirements to submit time. Timely access to assessment information, remove the invalid information, the error diagnosis, to determine the validity of this evaluation.

(C) data processing
Data processing based on fuzzy evaluation model, evaluation of the recovery of the assessment information table, the use of computer programming for data processing and analysis of the processed information to conclude and judge, to form a comprehensive assessment of the evaluation summary conclusions drawn. Among them, the evaluation Conclusions include: the learner's performance, advice and guidance to the teacher performance evaluation, advice and guidance, and teaching the rules of the daily activities of teaching evaluation, remedial measures, remedial teaching platform and process measures improvements to the teaching content and remedies. summative evaluation findings for teachers and learners to include the selective decision-making.

(D) Evaluation feedback
"World Net" effect of distance learning can assess the situation in the feedback form, or Email notice briefing to teachers and learners. Contents include a summary of teaching activities, evaluation of the learning to give, to good teachers and learners notice given in recognition of incentives, on the problems of teachers and learners to identify any problems and suggest improvements, generally Email feedback to my letter. for teaching and instructional platform system to evaluate the technical aspects of the general improvements in the form of reports and report to the system teachers, administrators and courseware development.

IV Conclusion
After the "World Network" Distance Learning Support System for seven years running, teaching effectiveness through questionnaires, assessment model and the fuzzy quantitative assessment found that in general the effect of distance education and teaching a number of factors, the first is based on the virtual space of the remote network teaching, teachers and learners, schools and prospective students in a relatively isolated state, communication between teacher and learner interaction is particularly important, lack of communication and exchange of teachers and students asked, obviously so that students loneliness, loss of motivation and interest gradually , teachers will be teaching in the loss of real-time information feedback, the loss of the targeted teaching. We have mainly adopted to enhance the classroom real-time video Q & A, local tutors face to face Q & A forum to discuss teaching, E-mail exchanges and other measures of individual to overcome this difficulty. followed by the teachers in the teaching level and quality of courseware is also a direct impact on the learners, as a manager to remind teachers to pay attention to traditional classroom teaching with the remote class differences, responsible for preparing lessons and teaching, focusing on teaching courseware thorough and rigorous visual perfection as possible, teaching content close to the actual needs of learners. The third is the need to focus on teaching platform technical support role, as the learner online learning time statistics, the provision of online library materials, teaching basic data collection and analysis are dependent and rely on the support of its work teaching platform. Finally, emphasis on quantitative analysis of effects of distance education evaluation and timely feedback to the parties concerned, because the continuously adjusted according to actual teaching effectiveness of control efforts in all aspects of teaching, teaching quality of distance education and talent Culture plays a very important role. Links to Research Papers Download http://www.hi138.com