The NGSS Network is a voluntary, informal network open to any state that adopts the performance expectations of the NGSS and seeks to improve K–12 science teaching and learning, using the NGSS as their foundation. As with development of the NGSS, Achieve coordinates the NGSS Network to meet the needs of states in implementing the standards, each state working on their own timetable and with their own priorities but sharing best practices and learning from one another in an effort to improve science education in their respective states.