Good teachers 'boost test results by 45 per cent'

Children can lose up to half of their marks in end of year tests after being taught by a poor teacher, research suggests. 

Pupils from poor backgrounds suffer the most in lessons led by the worst performing staff, it was revealed.

A study commissioned by the Sutton Trust charity found that replacing a bad teacher with the most highly effective performers was worth the equivalent of an extra year’s learning.

The disclosure underlines the extent to which Government plans to raise standards in the classroom hinge on their ability to attract the best graduates into the profession.

 http://www.telegraph.co.uk/education/educationnews/8766060/Good-teachers-boost-test-results-by-45-per-cent.html