From the NYTimes:
Lesson Materials: Computers with Internet access, materials for props and costumes, research materials on allergies, the immune system and related topics.
Activity: Divide the class into five groups. Explain that the class will be creating a short play about allergies, with each group creating and performing one act of the play.
Act 1: Introducing Allergies
Act 2: The Healthy Immune System
Act 3: The Immune System: Overreaction to Allergens
Act 4: Help for Allergies
Act 5: Allergy Relief