https://twitter.com/tombennett71/status/1296375488768806914?s=20 Teach Like a Champion advocates for the policing and 'correction' of non-standard spoken grammar. It's a punitive and discriminatory language policy, which contributes to the marginalisation of stigmatised speakers and their repertoires.

It operates under the benevolent social justice guise of giving speakers of non-standard grammar 'access' and 'opportunity'. But it perpetuates the deeply-embedded and discriminatory myth that there is a 'correct' way of using language.

The type of language policing strategies it outlines serve to shut down conversations, make non-standard speakers feel like they don't have a place in classroom talk and that their ideas aren't worth listening to.

In terms of classroom language, sociolinguistics and linguistic identity, I cannot think of a book to avoid more than TLAC if you 'want to create classrooms and schools where everyone enjoys a calm, dignified, and safe learning environment'.