We reflect on how to implement the instrumental aspect of collaborative writing in such a way that the developmental aspect of collaborative writing is maximally fostered, based on conditions necessary for socially constructed learning. We discuss four instrumental strategies that bolster mutual ownership of the writing and protect the social learning environment during collaborative writing: Initiating collaborating relationships based on trust and respect; initiating collaborating relationships between people who have different perspectives and writing strengths, but a similar work ethic; adopting attitudes of clear responsibility, total accountability, and persistence; and developing clear, consistent communication strategies.