Earlier this month a report from the National Audit Office said that England needs more than a quarter of a million more school places by next year.
Today MPs have been visiting a school in east London to see the problem for themselves.
Sejal Karia reports.
More top news
A police officer who spent six days crawling the London Marathon in a gorilla costume has finally completed the 26-mile route.
The victim of a "violent and sustained attack" on the top deck of a London bus has been named as Archie Sheppard.
Transport for London has made the badges and accompanying cards permanently available after a successful trial in autumn last year.