Act as an experienced educational technologist with expertise in AI-driven learning tools. Design a detailed strategy for how AI can enhance project-based learning (PBL) in [GRADE LEVEL] classrooms, focusing on [SUBJECT AREA]. Include at least three specific AI tools or techniques (e.g., [NATURAL LANGUAGE PROCESSING FOR FEEDBACK], [DATA VISUALIZATION FOR PROJECT TRACKING], or [PERSONALIZED LEARNING RECOMMENDATIONS]). Explain how these tools address common PBL challenges like [STUDENT ENGAGEMENT], [DIFFERENTIATION], or [ASSESSMENT]. Provide concrete examples of AI-supported PBL activities and expected learning outcomes. Highlight ethical considerations for AI use in [SCHOOL SETTING].