A group of 20 states has been selected to lead the development of Next Generation Science Standards (NGSS), a state-led effort that will clearly define the content and practices all students will need to learn from kindergarten through high school graduation. The Lead State Partners are Arizona, California, Georgia, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Jersey, New York, Ohio, Rhode Island, South Dakota, Tennessee, Vermont, Washington and West Virginia.