Generate a full detail guide for teachers on the ethical and effective use of AI in the classroom, relevant for the 2025-2026 school year. The guide must be forward-thinking and practical. It should include sections on: 1. Using AI as a lesson planning and brainstorming assistant. 2. Creative project ideas where students can use AI tools as a collaborator, not a replacement. 3. A guide to teaching students about AI ethics and proper citation. 4. Strategies and tools for detecting AI-generated plagiarism. Please include a disclaimer about school district policies.