The leadership contender said he wants to reverse cuts to schools and correct the yawning funding gap between pupils in London and the rest of the country.
Writing in the Daily Telegraph, Mr Johnson said there was now a growing gulf between the South East and other regions in GDP, and even in some cases in ambition.
Boris Johnson plans to spend at least £5,000 on every secondary school pupil in first domestic policy pledge
It is simply not sustainable that funding per pupil should be £6,800 in parts of London and £4,200 in some other parts of the country, he said.
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Claims by the US ambassador that America would want access to the NHS as part of any post-Brexit trade deal prompted a huge backlash last night.
MPs on both sides of the political spectrum criticised Woody Johnson after he said the entire economy would have to be part of any trans-Atlantic free trade agreement.
The row came with President Trump just hours away from arriving in the UK for the official three-day state visit starting today, which will include a banquet at Buckingham Palace. With the US President about to touch down in London: