When Remi says,"I buyed a new book," his dad responds,"Yes,you bought a new book." Remi's dad is using

Question

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Remi's dad is using a recast, which is a technique in which an adult repeats or restates a child's utterance in a correct form, exposing the child to the correct grammar or pronunciation. In this case, he corrected Remi's use of "buyed" to "bought." Fast-mapping is the ability to learn and remember a new word after hearing it only a few times. Overregularization is when a child applies a grammatical rule too widely or incorrectly, such as saying "goed" instead of "went." Expansion is when an adult elaborates on a child's utterance, adding more information or detail.

When Remi Says,"I Buyed a New Book," His Dad Responds,"Yes,you