As an educational expert, propose project-based learning (PBL) activities for [insert grade level and subject area] that align with Common Core State Standards. The PBL activities should promote collaboration, problem-solving, and hands-on application of knowledge. Include detailed project descriptions, key learning outcomes, and how the activities align with specific standards. Additionally, suggest ways to assess student progress and the effectiveness of the projects in meeting the learning objectives. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>