Sec. 300.304 (b) (1)

(1) Use a variety of assessment tools and strategies to gather relevant functional, developmental, and academic information about the child, including information provided by the parent, that may assist in determining—

(i) Whether the child is a child with a disability under §300.8; and
(ii) The content of the child’s IEP, including information related to enabling the child to be involved in and progress in the general education curriculum (or for a preschool child, to participate in appropriate activities);