BBC Bitesize has changed it has a different website, not really as intuitive  as  Bitesize before it, but once you navigate around it, it has lots of different activities for the new curriculum. I get a little lost when I want a quick game as a plenary for a topic and some of the links only link to video explanations. I think they must be in the process of updating the whole site and that is why this happens?

I discovered some nice Key Stage one Computer Science explanations of Computing Terms plus interactive games to explain them, whilst looking for KS1 maths though!

http://www.bbc.co.uk/education/topics/z3tbwmn