Abstract
This paper deals with explanation and evaluation of positive effect of small size classes. In brief it shows history of researches of Glass and Smith on beneficial effect of small size classes and how further findings led to Tennessee’s Student Teacher Achievement Ratio (STAR) experiment. After insight in history of this question one observes current situation with small sized classes and CSR. Moreover, there are examples that show positive effect of small size classes for students as well as for teachers. Using research data this paper illuminates why students of small size classes are more successful in school ...
