Structured input from both teachers and peers maximizes the opportunities for preschoolers to learn grammatical forms. The purpose of this pilot study was to evaluate the effectiveness of using a teacher and a peer with typical hearing and language skills to model grammatically correct verbal responses to action "wh-" questions…

The proposed framework assumes six developmental stages according to mean length of utterance in morphemes. Within each stage, syntactic forms and semantic relations interact. In assessment, each utterance is analyzed for features which describe current language abilities. Language goals are developed based on existing and expected features.…