I could possibly kill myself for not having found this earlier. Arghyam's India water portal has a comprehensive fluoride mitigation multimedia kit where a sweet old man comes and tells you about the basics of fluoride, fluorosis, solutions and projects are dealing with this. Perfect to show in the rural context or for beginners. What is even better is that it is available in Kannada! It would have been ideal for me to show the kids this. I will take it to them the next time I visit to say hi!