90 Páginas.This qualitative study reports the findings of an action research project, which analyzed the impact of collaborative writing on grammatical cohesion in descriptive paragraph writing in a group of young learners at a bilingual school. The research design was guided by the principles of collaborative writing, grammatical cohesion, and writing as a process. Data, in the implementation stage, was gathered through artifacts, teacher’s journal, and a survey. Findings reported that collaborative writing raised students’ grammatical awareness, as their paragraphs were cohesively accessible by the end of the intervention. Additionally, students realized that grammatical cohesion plays a crucial role in a text to make it truly comprehensible