Working with very young, minimally verbal children requires SLPs to differentially diagnose between a delay and adisorder. When Childhood Apraxia of Speech (CAS) is suspected, a different path of intervention must be followed based on the principles of motor learning. Before appropriate treatment can be provided, the correct diagnosismust be determined. There are plenty of assessment tools available for use with older, more verbal children, but this seminar will focus on the differential diagnosis of minimally verbal children in which a motor planning disorderis suspected. Characteristics of CAS will be compared and contrasted with other diagnoses of Autism Spectrum Disorder, Dysarthria, Phonological Disorder, and Expressive Language Delay.