Wales school guide
This appears to be a useful booklet- See page 11-13, Decoding and responding to behaviors.
“We are extremely grateful to Adoption UK (Wales), Ann Bell, Penny Jeffreys and everyone else that contributed to the publication of ‘Getting it right for every child’. We are sure this guide to working with adopted children and their families will prove to be an invaluable source of practical advice and information for everyone involved in the education of adopted children and will help better support them in reaching their academic potential.”
(The booklet can be downloaded from the link below)