Academics from the University of Cambridge and Anglia Ruskin University have told the government they believe formal education for young children is damaging.
They argue play-time is an opportunity for children to have fun, and say it should last until they are 6 or 7 years old.
More top news
Your pictures of the Summer sunshine
With temperatures rising and expected to top 30 degrees here are some top tips from experts on how to stay safe in the sun
Dry with long periods of strong sunshine. Becoming very warm, but it will be cooler along the coast due to the southeasterly breeze.