the big idea

Davies, who was born County Durham, has also appeared on Strictly Come Dancing, written a memoir, and hosted TV series Ultimate Wedding Planners and The Big Idea Works.

She says the “big idea” came from parents who wanted something to give them a real flavour of the school, such as how important sport was or the approach to discipline.

And then it came: the Big Idea.

Not long ago, technology was the big idea for enabling Africa to leapfrog its way out of poverty.

The big idea behind the technology is that you can rapidly develop a vaccine against almost anything - as long as you know the right genetic instructions to use.