“The social model of disability says that disability is caused by the way society is organised, rather than by a person’s impairment or difference. It looks at ways of removing barriers that restrict life choices for disabled people. When barriers are removed, disabled people can be independent and equal in society, with choice and control over their own lives.”
“The medical model looks at what is ‘wrong’ with the person and not what the person needs. It creates low expectations and leads to people losing independence, choice and control in their own lives.”
More information and some practical examples here.