It is a "national scandal" that poorer pupils are lagging up to a year behind their richer classmates in their schooling, shadow education secretary Stephen Twigg is expected to warn later.
In a speech to the Association of Teachers and Lecturers (ATL) annual conference in Manchester, Mr Twigg will say: "In other words, being a poor pupil in a poor classroom is the equivalent of being left a year behind. This is a national scandal.
"I know there are inequalities in our health system, but if poorer patients were left to linger on waiting lists for an extra year there would be a huge outcry."
More top news
A tense Wembley play-off final between Reading and Huddersfield was settled on penalties.
Detectives want to find out what happened to this suitcase that Salman Abedi was seen carrying on the day of the attack.
The golf ace has been arrested for driving under the influence by police in Florida.