Maths4Life is now archived as part of the NRDC site. Loads of ideas for teaching and learning numeracy – along with related constructivist / connectivist theory. It’s also a fantastic source of printable resources and card based games – I keep the big yellow folder under my desk and refer to it often.
All contents still available via the link as PDF files. for example, here's a link to the 40 page Number booklet which is full of ideas, games and activities. Look for the equally useful Measurement, Time and Money, and Topic Based Teaching books.