The typical cognitive assessments that are used for children require them to be able to use their hands to point to pictures or hold puzzle pieces.
For a child with CP learning to move, the really important things to remember are that the child should always be active.
Everybody tells stories, and that includes people who use communication systems. To ensure success and the ability to participate we need to make it as easy as possible. So that we can tell stories whenever we want, wherever we want, to whomever we want, and in a really easy way, so we can be successful.