This Youtube clip, with the rather unwieldy name of “Communication Practices: Non directive language, engineering environments with Erin” is 45 minutes long, and isn’t as scary as its name sounds.  The term “engineering environments” simply means to set up the environment you’re working in for best outcomes, in this case, modelling AAC.  There are some great practical suggestions there, especially for those just starting out with AAC modelling, when it feels quite overwhelming.  I liked the idea of having a duplicate of the child’s AAC on hand for yourself to use, wherever you may be, whether that’s a laminated set of screen captures attached to a handbag strap, or an iron-on piece of cloth in the nappy bag.