Boris Johnson has not ruled out a shake-up of the school calendar as part of a "flat out" bid to help pupils catch up from missed classroom time.
Milton Keynes school children could have their summer holidays reduced to give them an opportunity to catch-up on what they've missed because of the pandemic.
It would come as part of a nationwide 'shake-up' to the school calendar across England.
The prime minister on Monday said the government's "single biggest priority" now was to overcome the loss of learning suffered by children during the coronavirus pandemic.
In the week of 22 February, Mr Johnson is due to unveil his roadmap for lifting England's current lockdown restrictions.
It has been reported that among the proposals being considered by ministers is a change to the school calendar.
According to The Sunday Times, one idea is for schools in England to stay open for two weeks longer in the summer, when doors and windows can be left open to reduce the risk of virus transmission.
The holidays at autumn half-term and Christmas would subsequently be extended by a week each, the newspaper said.
Asked on Monday whether school terms could be extended into the summer holidays, Mr Johnson declined to rule out such a move.
"In the week of 22 February we will be setting out much more about what we're going to do to help pupils catch up, to help kids catch up for the learning that they've lost," he said.
"As I said last week, this is the single biggest priority now for the government.
"We can do things at great pace to try and remedy the gaps in provision for healthcare, the loss of healthcare that people have suffered, we can speed up court cases.
"But we've got to work flat out now as a country, as a society, to remedy the loss of learning that kids have had."
The prime minister highlighted how the government had already committed to a £1bn programme to help children catch up from lost teaching time.
And he added Education Secretary Gavin Williamson would "also be setting out in more detail, exactly what we want to do to help kids catch up and bounce back from this pandemic because it's going to take a while to do that."
Mr Johnson has previously said that 8 March is the "earliest" by which the government could allow schools in England to fully reopen from the current national lockdown.
