What is the approximate vocabulary of a child at the end of Chall's Stage 1?

At the end of Chall's Stage 1, which corresponds to the early stages of reading development typically occurring between the ages of 5 and 7, children usually have a vocabulary of around 600 words. This stage emphasizes the emergence of basic literacy and a growing understanding of print and phonetic awareness. As children are beginning to read simple texts, their receptive and expressive vocabulary expands significantly, incorporating both spoken language and the new words they encounter in early reading.

This milestone reflects the typical linguistic development seen in early education, where children learn basic sight words and begin to articulate a more extensive range of vocabulary related to their everyday experiences and newly introduced concepts within a school setting. This vocabulary foundation is crucial as it supports further language acquisition and literacy skills as they progress through subsequent stages of reading development.