Teacher shortages, like the one schools face today, are not new. Periodically over the last 50 years there were fewer teachers available than were needed, and the response was primarily to step up recruitment efforts and issue temporary teaching credentials to those without qualifications. Three things are new however: (1) The requirement that…

The study reported in this paper quantitatively integrated the recent research findings on ability grouping in order to generalize about these effects on student achievement and student self-concept. Meta-analysis was used to statistically integrate the empirical data. The relationships among various experimental variables including grade level,…