Trial method modeling and residual revision for gray Verhulst model of high school teaching quality

This article to high schools in Pudong New Area 36, in the rate of college entrance examination past rate, and three years ago the new students entrance result for every high school, has carried the system analysis, has modeling the gray Verhulst model by using the Excel trial method. At the same time, to increase the model precision, has carried on the residual revision to the model. This article research to analyze well, appraise and forecast the quality of teaching for the High schools in Pudong New Area, for the leadership department decision-making, has provided the important reference, simultaneously for the gray Verhulst model´s modeling, has also provided a new method.