The Purposes of Evaluation As Donald Haefele (1993) points out, a clear sense of purpose should govern the design of a teacher evaluation system. He identifies the following purposes that must be served, arguing that a system should screen out unqualified persons from certification and selection processes; provide constructive feedback to individual educators; recognize and help reinforce outstanding service; provide direction for staff development practices; provide evidence that will withstand professional and judicial scrutiny; aid institutions in terminating incompetent or unproductive
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