The result is that a lot of bad (and often expensive) teachers linger in the system.
The city is using a one-time infusion of $275 million in state aid to pay for a new, more expensive teachers' contract.
While this policy only applied to newer teachers and thus can't deal with things like experience or expensive teachers, it is evidence that administrators do consider teacher effectiveness.
In the past, the most expensive teachers, the most experienced, were the most tempting to cut, especially during eras of tight budgets.
The most senior and consequently most expensive teachers could transfer into middle class schools in areas where they were needed least.
An expensive "superhero teachers" advertising campaign was launched to sell the city's lifestyle and challenge.
He was one of the most sought-after and expensive piano teachers in Vienna, Stuttgart and, finally, Weimar, where he died in 1837.
"A.P. courses tend to be somewhat more expensive, and teachers who are able to teach those courses are often in shorter supply," said Michael Casserly, director of the Council of Great City Schools, an organization representing the largest urban school districts.
There is an attempt to get rid of experienced teachers who have built relationships with families, who truly know how to teach and replace them with less expensive inexperienced teachers who likely will only be at the school for two years.
However, recruitment of sufficient, relatively expensive, clinical teachers can be problematic and as students need to practise skills with increasingly distant supervision, SDL approaches to clinical skills training have become attractive and have expanded beyond the boundaries of effective pre-clinical teaching [ 22] into clinical and post graduate training.
