A Framework for K-12 Science Education poses the idea that students are best positioned to figure out phenomena and solve problems by engaging in science and engineering practices and using the crosscutting concepts as thinking lenses. The crosscutting concepts are a broad set of useful themes that can be applied to any field, including education. By using the crosscutting concepts to approach their own problems and opportunities of practice, teachers can engage in deeper reflection and metacognition—and strengthen their ability to help students use the crosscutting concepts to explain phenomena and design solutions.