Research On The Cost-effectiveness In Practice Of Educational Technolgy

Content: The concept of cost-effectiveness include two aspects: one is effect, virtue; the other is efficiency, the relation of input and output. The cost-effectiveness in practice of educational technology can also be partitioned into two levels: one is the effect that educational technology can gain; the other is the cost-effectiveness in implementing of educational technology. We can evaluate it with rubric and "cost vs effectiveness" analysis. Optimization is theory foundation of this research. The problems of cost-effectiveness exist widely in the practice of educational technology. The investigation shows that some phenomena are ubiquitous. Such as unscientific doing and waste of resource in input aspect; tie lower rate of using the equipment, the lower effect of application, configuring the resource of human and material improperly in output aspect. The cost-effectiveness is dissatisfaction as a whole. The reasons come from two sides of person and material. Thus, we can advance the cost-effectiveness in practice of educational technology from two sides. One is pushing cost-income analysis in microcosmic aspect, the other is leading idea and restriction with system in macrocosmic aspect. The idea leading is building up the idea of cost-effectiveness in practice of educational technology, including the concepts of practicality, quality, system, saving, development and equitableness. The restriction with systems include the system of argumentation and hearing of witnesses, the system of stocking with inviting public bidding, the system of training teachers, the system of evaluating scientifically and the system of inspiriting.