20. Expenditure for the purposes of encouraging—
(a)collaboration between special schools and primary and secondary schools to enable children with special educational needs to engage in activities at primary and secondary schools;
(b)the education of children with special educational needs at primary and secondary schools; and
(c)the engagement of children with special educational needs at primary and secondary schools in activities at the school with children who do not have special educational needs,
in cases where the local authority consider it would be unreasonable for such expenditure to be met from a school’s budget share or the general annual grant paid to an Academy by the Secretary of State.