To get started with speech, language, and communication needs (SLCN) it is important to understand the differences between them. Knowledge of these differences and how they impact a child is central to specialist SLCN interventions. Teachers and teaching assistants are less likely to have had training in the area. This short video provides a brief but clear overview of speech and language components.
Hartshorne, M. (2011) "Speech, Language and Communication in Secondary Aged Pupils." Available at: https://ican.org.uk/media/1926/ican_talkseries10.pdf