Sec. 300.704 (b) (4) (x)

(xi) To provide technical assistance to schools and LEAs, and direct services, including direct student services described in section 1003A(c)(3) of the ESEA, to children with disabilities, in schools or LEAs implementing comprehensive support and improvement activities or targeted support and improvement activities under section 1111(d) of the ESEA on the basis of consistent underperformance of the disaggregated subgroup of children with disabilities, including providing professional development to special and regular education teachers who teach children with disabilities, based on scientifically based research to improve educational instruction, in order to improve academic achievement based on the challenging academic standards described in section 1111(b)(1) of the ESEA.