The government has charged Sir Jim Rose with reviewing the primary curriculum and he is expected to report next year.
He is now being asked to recommend the best way to identify and teach dyslexic children in school.
Dyslexia charities say they want every school to have one teacher trained to identity and support dyslexic pupils.
Announcing the wider remit, Schools Secretary Ed Balls said Sir Jim would recommend how to establish a pilot scheme in which children with dyslexia are given one-to-one tuition from specialist dyslexia teachers or follow what is known as a reading recovery programme.
Mr Balls said: "Jim will consult with dyslexia organisations and his recommendations should provide firm evidence as to the way forward, convince the sceptics dyslexia exists and tell us how best to get these children the help they deserve.
"Children only get one chance at education and if a child falls behind their life chances can be blighted.
"What I'm announcing today will help us put the needs of dyslexic children first The chief executive of the British Dyslexia Association, Judi Stewart, said the organisation welcomed the review - but action was needed now.
"We welcome the review. Jim Rose is very respected. But we firmly believe that the best way forward is to have a specially trained teacher in every school. We should not wait for the pilot to happen."
