"The Next Generation Science Standards (NGSS) were developed by a group of 26 states working with a writing team of 41 national experts in science education, facilitated by Archive, Inc. Teams from each of the participating states provided writers with ongoing feedback and direction throughout the development process. In addition to input from the 26 lead states, all states had the opportunity to submit written feedback at regular intervals. Moreover, tens of thousands of suggestions were received during two public comment periods. The NGSS reflect a multitude of contributions from many stakeholders" -- from back cover.