Students in teacher Miguel Aguilar's fifth-grade class consistently make gains on standardized tests while next door, fifth graders who pass through teacher John Smith's class each year fall behind.
Reformers cannot constantly wave this idea around as though they are the only ones who care about teacher quality, and then plug their ears whenever critics point out that tests are a very crude, very imprecise measure of student achievements and teacher quality.
Posing as a teacher, Ternovskiy got access to some practice tests before they were delivered to his school.
In 1993 a boycott of the school tests ended in victory for the teacher unions and ignominious defeat for the then Conservative Education Secretary, John Patten.
The Qualifications and Curriculum Authority (QCA) said that if a child was enrolled in a school, the head teacher had a legal obligation to administer the tests to that child.
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Mr. Thompson also suggested changes to the teacher evaluation system, making it less focused on tests.
The move by the state's Board of Education would put Connecticut among an increasing number of states, including New York, linking at least some part of teacher evaluations to how well their students score on standardized tests.
We do thorough vetting before nominations. (Laughter.) Of course, her recommended professions after she took these tests were to be a nurse or a teacher -- just like all the other girls in her class.
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Central to evaluating teacher quality and effectiveness must be periodic and regular student achievement tests and scoring.
The government is shifting more teacher training towards schools and recently announced details of tougher entry tests for trainees in English and maths.
The tests are the same for both primary and secondary school teacher trainees, who must also have achieved a grade C or above in GCSE maths and English.
This can only tell them how good a teacher is at raising or lowering a student's performance on standardized tests.
Northern Ireland differs in that there are no tests for seven and 11-year-olds, only teacher assessments of their pupils' progress.
OECD's education experts think that part of the reason why East European countries' pupils do so well in international tests, despite fairly modest education spending, is that they have effective teacher-training programmes.
Ronnie Hassard, the head-teacher at Ballymena Academy, which uses the GL assessment exam, said that the money for the tests came from individual grammar schools and was processed through the PPTC and paid to GL Assessment.
Last year a Broward math teacher could not understand why his brightest eighth-grade students were scoring merely average on their Stanford standardized tests.
From next year, all trainees will have to pass all three tests - numeracy, literacy and information and communication technology - before they can be awarded qualified teacher status.
Any teacher who has equivalent overseas qualification can join a school as an unqualified teacher and will be assessed for a year before he or she is deemed fit to take the QTS tests.
Education department official Katrina Godfrey said the results of the tests were not collected anywhere outside of the classroom and had been "designed to help pupil, teacher and parent work together to achieve the pupil's full potential".
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