2. 請用中文說明此段大意，並依照您自己的觀點或相關之學理，評析段落內容。(25%)
　　Progressive education is characterized by devotion to the interests of pupils. It is not a specific plan of educational procedure. However, at least two common elements are present in all schools which call themselves “progressive”: the belief that education needs to be and can be improved and a willingness to develop and apply a working hypothesis as to the way in which this improvement may be brought about. Progressive schools are essentially experimental, and the experiments are varied, both in purposes and in procedures. In the past, educational practices have commonly been judged in terms of the marks received by student on standardized tests and entrance exams. The chief problem in the minds of most teachers and administrators is how to evaluate progressive schools effectively—or how to develop alternative ways of evaluation.