Year 4 Fun Zone!

http://www.oxfordowl.co.uk/home/reading-site/fun-ideas/age-9-11--2 

Nice ideas for games that involve Reading and sharing books. These ideas can be adapted to suit different text types and also used for different age children.

http://www.bbc.co.uk/bitesize/ks2/maths/

A wide variety of good ideas for revising Numeracy, these can be linked to school learning and activities from the Home Learning log. 

http://www.teachingtreasures.com.au/maths/mental-maths/yr4-maths-pg1.htm

Some good timer based activities to help children speed up their mental maths and calculation skills. There is a mixture of questions covering all operations. 

http://www.kidsspell.com/

Bright, colourful ane eyecatching spelling games and activities for developing knowledge of spellings and letter patterns. Custom lists can be made to include topic based words relevant to each topic covered in school.