You may wish to include a few introductory sentences to establish the context before launching into the narrative. What subject and grade level is it? What curriculum area(s) and specific topics are being addressed? What is the length of unit? What else would another educator need to know to understand your scenario?
The next sections should be a narrative version of what someone might see, hear and feel if they were visiting your classroom. Use third person, active voice. What would the teacher(s) be seeing, doing and saying? And with what result? What would the students be doing or saying? And with what result? Who else is involved besides the teacher(s) and students?
How is the project introduced and how does it get started? How is the project "hooked into the task?" How are prior knowledge and skills assessed? How do students determine the topic, aspect of the topic, problem or issue about the topic to be investigated? How do students come up with questions, concerns, issues, hypotheses, or problem-solving suggestions that guide their investigation and overall participation in the project? How do you turn the problem over to the students so they begin their action plan? How are the students grouped?
Describe the typical activities students and teachers are doing. Describe the roles students and teacher play during the project. Describe how the teacher is coaching, troubleshooting, and providing feedback. What tools, materials and resources are students using? How is technology being used? What twists or new challenges are introduced to maintain the focus on your goals and continue to keep your students involved? What intermediate products are being worked on and how are the students being assessed?
What is happening at the end/culmination of the project? What are the students producing to reflect their learning? What aspects of the projects are brought to closure? What aspects are ongoing? How are the students being assessed? How are the products shared with the class, local community, or the Internet community?