Science and Engineering Practices
The practices describe behaviors that scientists engage in as they investigate and build models and
theories about the natural world and the key set of engineering practices that engineers use as they
design and build models and systems. The NRC uses the term practices instead of a term like "skills"
to emphasize that engaging in scientific investigation requires not only skill but also knowledge
that is specific to each practice. Part of the NRC’s intent is to better explain and extend what is
meant by "inquiry" in science and the range of cognitive, social, and physical practices that it requires.
Although engineering design is similar to scientific inquiry, there are significant differences. For example,
scientific inquiry involves the formulation of a question that can be answered through investigation, while
engineering design involves the formulation of a problem that can be solved through design. Strengthening the
engineering aspects of the Next Generation Science Standards will clarify for students the relevance of science,
technology, engineering and mathematics (the four STEM fields) to everyday life.