On the educational activities web link I have put on the blog there are a range of activities for children. A good one for maths just now is to type in hit the button in the search box. For some reason I was unable to put this on directly. This has multiplication, division, halving and doubling which we are working on in class at the moment. I hope this is some help.
We are starting work in science on variation and plants and animals and there are good activities on the bitesize science web site for these.