The vote does not prevent teaching of evolution, but removes any mention of it from the state assessment tests. It's the generations old debate about the origin of the universe, world and life. Creationists argue that a divine being did the job. They argue that there is no physical proof of evolution, it should not be taught as science but as a theory.
Evolution is demoted from science to theory and creationism is elevated from theory to science.
Alabama, New Mexico and Nebraska also have ruled to challenge the teaching of evolution as science. The matter has been seriously debated in other states as well. The subject is so controversial that science textbook publishers have virtually eliminated discussion of the subject in order to assure sale of books. The man is going a bit far. For centuries there have been people who understood the universe as an ages old process of development.