Discipline as Easy as 1, 2, 3 This training describes how 1-2-3 reinforces the notion that it's the behavior – and not the child – that is unacceptable. Key points discussed include: the no-talking and no-emotion rules; a detailed description of how 1-2-3 works; and tips on applying 1-2-3 to the child care setting. Age Group:Toddler, Preschool Core Knowledge Area:Guidance, Discipline, Interactions