Free download: A FRAMEWORK FOR K-12 SCIENCE EDUCATION Practices, Crosscutting Concepts, and Core Ideas
National Academies of Sciences, Engineering, and Medicine. 2012. A Framework for K-12 Science Education: Practices, Crosscutting Concepts, and Core Ideas. Washington, DC: The National Academies Press. https://doi.org/10.17226/13165.
What students do
How students think and connect ideas
What students know