Yenka is a new resource from the people who produced Crocodile Clips. It’s based on their Absorb range of online teaching materials that originally were released alongside Crocodile Physics and Chemistry.
The whole library is going to be a subscription service, but on release they have produced 700 resources which can be used free-of charge.
These resources cover aspects of science and maths and should work very well on an interactive whiteboard. Well worth a visit.