A shortage of graduate teachers working in the early years sector means many young children are at risk of falling behind before they start school, a charity warns.
Save the Children says there are nearly 11,000 too few early years teachers working in nurseries across England.
Toshiba Support It says all children should be in childcare led by graduate early years professionals for the best start.
The government says the charity's claims are misleading.
Save the Children's warning comes a week after Education Secretary Damian Hinds said it was a "persistent scandal" that youngsters were starting school unable to communicate in full sentences or read simple words.