Once students become more fluent writers, there is more flow between the Compose and Share the Pen phases. Depending on the teacher's goals, the time frame, and the writers' skill, they might write several sentences or whole paragraphs in one interactive writing lesson. To do this, the class would move back and forth between the composing and constructing phases. They would negotiate the precise message sentence by sentence and then share the pen after each sentence is decided. Then they compose and then write again. For example, a second-grade class returned from a field trip and wrote an informational piece on the town they visited (see Figure 1). The text, which includes seven sentences, was written over two days.