Analyzes whether comprehensible input via captioned television influences acquisition of science vocabulary and concepts using 129 bilingual seventh and eighth graders. Finds that comprehensible input is a key ingredient in language acquisition and reading development. (MG)

One theory of second language acquisition argues that children's competence in a second language is a function of the amount of "comprehensible input" acquirers receive and understand, without formal instruction in reading or grammar. To examine this hypothesis, this study analyzes whether comprehensible input in the form of captioned television…

Responds to criticisms raised in another article in this issue concerning a study of incidental word learning among second-language learners viewing captioned television. Suggests that the criticisms fail to "see the forest for the trees." Responds to specific methodological criticisms. (RS)