The timing of Mr Miliband's announcement condemning a possible pay rise for MPs' has raised a few eyebrows.
Even by the standards of past disagreements, the row over free school meals is pretty splenetic.
Nick Clegg has accused his Tory partners of letting "ideology" get in the way of education, but insists the coalition is not in crisis.
Nick Clegg stressed today that his stand was not about electioneering, but genuinely-held strongly differing opinions on this issue.
I'm sure his party members will be quite happy to see growing divides with the Conservatives. It also, of course, aligns them more closely with the Labour position which could also prove handy in a year or so.
Downing Street have said today they are very surprised by what Nick Clegg has said, but they're trying to spin this as not a split in the Coalition, but a split within the Liberal Democrats.
A Downing Street spokesman said earlier that the Lib Dem schools minister David Laws said last week that he was "100% behind the coalition's free schools policy".
Jeremy Browne, a former Lib Dem minister, told the BBC's Sunday Politics today that the vast majority of free schools had done “an absolutely fantastic job”.
He added that he was concerned that the Liberal Democrats risked looking like a "pale imitation of the Labour Party".
"Criticising parts of the Coalition’s work will make it impossible for the Lib Dems to claim credit for Government successes," he added.
Conservative Education Minister Elizabeth Truss has said she is "slightly surprised" by Deputy Prime Minister Nick Clegg's comments on free schools.
She told ITV News she thinks there is a "divergence of views" within the Liberal Democrat party, and that Clegg may have spoken out to "placate" elements within the party.
The Deputy Prime Minister has said that energy companies must be 'more transparent' but stopped short of supporting Justin Welby after the Archbishop of Canterbury warned that the latest wave of hikes looks "inexplicable" and that providers should behave morally.
Speaking on Murnaghan on Sky News Nick Clegg said:
"Clearly the companies need to justify the bill increases that they are now announcing and that's one of the reasons Ed Davey has written to the companies and said 'you've got to be more transparent' about the sums which lie behind these eye-wateringly high price hikes."
"It cannot be right that people who are really struggling to pay their bills. I think we do need, not only more competition so people can switch to lower tariffs... but also great transparency in the way on which these companies account for themselves.
"Not just to their shareholders but also to the public."
Nick Clegg has said that his stance on education is not a "surprise" and said that is not "a coalition crisis."
Speaking to Sky News the Deputy Prime Minister said: "It's not some great coalition crisis as it's been described, it's just a perfectly sincere difference of opinion.
"And it's about as we move to giving schools more autonomy do we at the same time ask them to respect some basic quality standards so that parents can be reassured that their children are going to be taught by qualified teachers, are going to be taught the national curriculum.
"Of course there are tensions and pinch points, we're not identical parties. No-one should be surprised about this and it's not a political crisis when some of those differences are articulated in public."
The new shadow education secretary has said he is "delighted" that the Deputy Prime Minister has called for qualified teachers in all schools, causing potential divisions in the coalition.
According to the Observer, Tristam Hunt said: "I'm delighted Nick Clegg has realised the dangers of an ideologically driven schools policy. We would be happy to work with him to reintroduce accountability, proper standards and qualified teachers in all our schools across the country."
The Deputy Prime Minister will open dividing lines with the Conservatives by insisting some education policies should not continue. Nick Clegg is due to make a speech this week over coalition's stance on education. He is due to say:
It shouldn't surprise you if I say that, although we work well with the Conservatives, our two parties still have differences of opinion, some strongly held.
Looking to the future, there are aspects of schools policy currently affected by the priorities of the Conservative Party which I would not want to see continue.
Parents don't want ideology to get in the way of their children's education.
Nick Clegg will dramatically disown key "ideological" planks of the coalition's education policy in a speech this week.
The Deputy Prime Minister is to open dividing lines with the Tories by insisting all teachers should be qualified, and the national curriculum should be taught in every school.
"It is Lib Dem policy to give all schools, whether they are academies or not, those same freedoms to attract and reward excellent teaching, set their own term dates and vary their school day," the Liberal Democrat leader will say.
One of Nick Clegg's most stalwart supporters has warned that the party is in danger of being dragged from the centre by the Liberal Democrat “shopping trolley that defaults to the left."
In his first interview since being sacked in last week’s reshuffle, Jeremy Browne told the Times said he was shocked to receive call from the leader ending his time at the home Office.
Comparing his party to a shopping trolley that “left to its own devices defaults to the left and to being the party of protest”, he says that he became exposed after years of trying to exert “corrective pressure”.
The UK is turning a "crucial corner" in the road to economic recovery, the deputy prime minister has said.
Nick Clegg was announcing a further round of funding as part for small to medium sized businesses as part of a trip to Newcastle:
– Deputy Prime Minister Nick Clegg
This fund has so far helped over 400 projects and over 3,000 SMEs across the country to boost our economy - expanding, improving, innovating and helping secure our economic recovery.
The economic recovery is starting to bloom - we're seeing very encouraging signs that we are turning a crucial corner on our road to recovery.
Home-grown and British-based businesses are leading that charge for a stronger economy.
The Regional Growth Fund is a helping hand from the Government, but I pay tribute to the people who are working hard to fuel our recovery.