Presents a functional grammatical analysis of the writing that 128 seventh- and eighth-grade students produced in response to their science teacher’s directive to describe a picture. Identifies the register elements of the task and the grammatical difficulties it posed for students. Shows that teachers can help students use grammatical resources to expand and develop their writing skills.

This article compares essays written in Spanish and English by bilingual writers whose prior formal academic writing instruction has been only in English. The authors describe both writers' discourse-organizational and clause-combining strategies, showing that one writer's organizational structure reflects explicit planning, whereas the other employs a more emergent organizational structure for her essays. In each case, these choices are the same for Spanish and English. Analyzing these writers' clause-combining strategies demonstrates that organizational structure at the discourse level is reflected in the types of clause combinations chosen by the writers at the sentence level, with one writer using more simple sentences and embedded clauses and the other using more hypotactic and paratactic clause combinations. The article demonstrates how clauses constitute and reflect the structure of texts and suggests that development of a repertoire of styles and discourse strategies depends on control of a variety of syntactic options.