Year 5 and 6 may find the following websites help with their Reading and Writing learning:

BBC Bitesize  - great revision for reading comprehension and some writing skills.  

Every School - Reading comprehension interactive games and printable resources. 

Crick Web - Reading, spelling and grammar. 

Top Marks - Comprehension, grammar and spellings. 

https://www.gov.uk/government/collections/national-curriculum-assessments-practice-materials - Year 6 SATs prep materials