The National Academies have released a document to help guide the implementation of the Next Generation Science Standards (NGSS) that may be read online or downloaded for free.

“Guide to Implementing the Next Generation Science Standards” describes a new vision for science learning and teaching that is leading to improvements in science classrooms. The document offers guidance to teachers and school and district leaders charged with developing a plan and implementing the standards as they change their curricula, instruction, professional learning, policies and assessment to align with the new standards.

Go here to read the document or download it as a .pdf file.