The Code of Practice 2015 says:
“A child or young person has SEN if they have a learning difficulty or disability which calls for special educational provision to be made for him or her.
A child of compulsory school age or a young person has a learning difficulty or disability if he or she:
- has a significantly greater difficulty in learning than the majority of others of the same age, or
- has a disability which prevents or hinders him or her from making use of facilities of a kind generally provided for others of the same age in mainstream schools or mainstream post-16 institutions.”