Is it possible to get the Bible's message into public schools legally? Yes, and it's being done every day.
Videos with a Christian message suitable for public schools are available free of charge to public schools.
The videos are appropriate for Science, Social Science and History classes. Titles include: How the World Came to Be, The Origin of the Universe, The Origin of Life, The Origin of Species, The Origin of Mankind, The Great Dinosaur Mystery, A Crisis of Character, Growing Against the Grain, and Nation Adrift.
These videos are available for rental to private schools and home schools.