www.education.gov.uk under education acts this is good
www.aboutlearningdisabilites.co.uk special needs this cover giving the child access to all resorces and equipment, making sure they can join in activities and can lead their lives to their full potential.
www.smarta.com equality act this gives a good basic idea but many how you treat the children how you get them to treat and respect others are some examples this can cross into diversity too.
www.workingwithkids.co.uk under children acts gives you everything you need like every child matters and how do you use that
Hope this helps