Effects[edit]In recent years, in the aftermath of Project STAR and Project SAGE, there is evidence validating the perceived benefits of class-size reduction, especially in its ability to narrow the achievement gap for minorities. Today, more than 30 states have enacted class size reduction legislation as a way to “lessen the effects of economic and social inequities, to increase academic achievement, and to strengthen the foundational social skills students develop in primary grades” [2][7][8]Studies finding statistically significant benefits from class size reduction show more positive teacher-student interactions leading to less time spent on discipline,[9] the increased use of balanced instructional methods including higher degrees of individualization,[10] closer personal relationships for teachers with students and families,[11] a decrease in the effects of economic and social inequalities,[12] increased student achievement,[2] and establishment of a stronger foundation for lifelong learning beginning in the primary grades.[8]McEwan and McEwan evaluated the results in 2003 und inferred that a small class can be viewed as a necessary but not sufficient condition for improving achievement; class size reduction ‘works’, but only to the extent that it leads to improved instruction.[13]Definition of class size[edit]An early complication in measuring the efficacy of class size reduction was the tendency for different ideological camps to use different definitions of class size in the literature. As a direct measure of the number of students in each class, group size is currently understood by the educational community to be the best measure of a teacher's "true opportunity to build direct relationships with each student." A more malleable definition and one now held in dubious regard,[4] pupil to teacher ratio, would declare a situation in which one teacher leads a class while another does paperwork in the back but does not interact with students as being half as large as its group size.[14]In the past, depending on which measure was used, researchers tended toward far different interpretations of the benefits of class size reduction leading to far different recommendations for implementation. In 2002, Margaret Spellings, secretary of education under President George W. Bush, pointed out the need for a standardized definition of what is meant by class size.To differentiate student-teacher ratio and class size, it is important to know several key distinctions. Class size, generally speaking, refers to the average class size in a given grade level of a given school. Student-teacher ratios, normally, are calculated by taking the total number of teachers at a given school divided by the complete enrollment of that school. This distinction is significant, because the ratio will not always match up with the class size figure (or vice versa). For example, a student-teacher ratio may be small but a class size may be larger than what the student-teacher ratio leads one to believe.[15]
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