Ming from Agents of Speech explains how to speed up language development in children labeled nonverbal. Start with functional phrases kids actually need, like asking to use the bathroom. Many children deemed nonverbal at school speak short phrases at home, a gap worth closing.
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There are different types of approaches to dealing with language development. I'll just tell you a few. First one is if a child is kind of lacking in verbal, like just stuck with single words, we will teach them some functional language for survival situations, such as can I use the bathroom, please? Because we have had a few children all over the world who are deemed nonverbal in our programs. Right. Deemed non verbal by the schools. But when they're at home teaching, taught by their mothers and fathers, they're actually speaking in short phrases. We're teaching them how to do it. But when they're outside, it's very hard for them to get those languages out. And therefore, we have to teach a bunch of functional languages that are real quick.