Investigates the process involved in acquiring word knowledge from written context in prereading kindergarten children. Analyzes children's readings of picture books to identify patterns of vocabulary growth. Concludes that children learned lexicogrammatical information incidentally through exposure to written context. (MM)

Investigates the relationship between the relative difficulty of passages and the number of unknown words in passages. Finds little support for the theory that free reading results in large vocabulary growth. Calls into question the practice of devoting large amounts of classroom time to free reading if the purpose is to increase vocabulary or…