School funding debate: What does it all mean?
David Cameron says a future Conservative government would protect England's schools budget in cash terms, but per pupil funding would not keep pace with inflation.
The prime minister said the government would provide a further £7bn for extra places for rising numbers of pupils.
But Labour said Tory claims to protect funding were "unravelling" and represented a "real-terms cut".
BBC News chief political correspondent Vicki Young gives her analysis of the debate.