In order to accomplish this, the NGSS call for science learning in which students do not just memorize a set of science facts, but rather engage in figuring out how and why things happen. Core ideas in life science, Earth science, physical science, and engineering, are intentionally arranged from kindergarten through 12th grade so that students can build their understanding over time, and can see the connections between different ideas and across disciplines. To figure out these core ideas, while building the skills that will help them make sense of the world around them, students engage in the same practices that real scientists and engineers do. For example, students will develop and use models, analyze data, and make evidence-based arguments. They also learn to make sense of core ideas using crosscutting concepts that are useful ways of thinking about and making connections across different areas of science and engineering, for example thinking in terms of systems or cause and effect. The NGSS website provides additional information and resources for families.