As of January 2020, twenty states have adopted the Next Generation Science Standards (NGSS), which are based on the National Research Council Framework for K-12 Science Education. An additional twenty-four states have adopted their own standards that are based on the National Research Council Framework for K-12 Science Education. Consequently, the standards are impacting science education for approximately 71% of United States students.
As teachers across the country have realized, NGSS changes the expectation for what science instruction looks like. NGSS moves students beyond just knowing science and demonstrating their knowledge through completing scripted science experiments and demonstrations to doing science and solving problems like scientists and engineers. This means the materials for science instruction have to change, too.