Thanks for the post.
You definitely could have daily grades during a project. We usually give two pieces of advice for teachers:
- Grade As You Go (i.e. Check-ins, homework, quizzes). Give a grade for each product, not one grade for the whole project.
- Disaggregating the Data (Content Knowledge & 21st Century Skills). One of the most powerful ways to emphasize the importance of 21st Century Skills is to grade and report them separately. Separate % or weights for content and 21st century skills. Also, some teachers like to make the team grade a percentage of the individual grade or part of Collaboration.
See the attached .pdf for possible weighting criteria and breakdown of project deliverables.