"That got a comment in the Ofsted report. It was clear the inspectors liked it and they should, because it is what education is about."
St Gregory's, which is in a deprived area, is one of an increasing number of schools rewriting their curriculum to cater for pupils - rather than following national edicts.
But many teachers across the country are not sure how to move from subjects to broader learning based on topics - a recent call for help on the TES online forum prompted more than 100 requests for Mr Dunne's topic-based plans.
Mr Dunne said: "The greatest strength of education is when teachers get together and share ideas. The point of a topic-based curriculum is moulding it to your own context.
"We started with topic webs. You get a big piece of paper, write World War II in the middle and then every learning opportunity: history, literacy, art, design... Obviously there is music - such as Vera Lynn singing 'We'll meet again'. It doesn't work with everything, so you don't stretch it.
"When you have 11-year-old boys saying, 'We'll meet again', you know you're doing something right."