Our revision guide for the new GCSE 9-1 Computer Science course includes all the theory required to sit the exams. We have focused on the theory topics over the programming elements which students will have had plenty of practice for in their controlled NEA. We use our own animations to explain and remind students how search and sort algorithms work.
 
In summary:
Computer Science Revision for Edexcel 
Over 190 slides including exam advice 
Bespoke animated explanations of algorithms
Case studies and 'over to you' questions
 
Note this is now a legacy specification - our 2020 spec revision guides are now available.