Teacher evaluation methods found wanting
An excellent article in The Washington Post examines the pitfalls of evaluating teachers based on student test scores. This commonly used method of assessing teacher effectiveness has been proven unreliable as it discounts a number of factors that can influence student performance, for instance, family income level, parental involvement and teacher-student ratio.
This means a teacher who is effective can still receive poor ratings, and vice versa.
It was particularly interesting to read about the unintended consequences on students of using this evaluation model, where not only teachers but also students get labelled as ‘under performing’, and fail to receive real help to improve themselves.