Experience matters. Teacher turnover can be harmful even with respect to the very indicators that we care about.
Important study. Available at this site via pdf.
Angela
When teachers leave
schools, overall morale appears to suffer enough that student
achievement declines—both for those taught by the departed teachers and
by students whose teachers stayed put, concludes
a study recently presented at a conference held by the
Center for Longitudinal Data in Education Research.
The impact of teacher turnover is one of the teacher-quality topics
that's been hard for researchers to get their arms around. The
phenomenon of high rates of teacher turnover has certainly been proven
to occur in high-poverty schools more than low-poverty ones. The
eminently logical assumption has been that such turnover harms student
achievement.
Continue reading
here.
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