STEM stands for science, technology, engineering, and math. STEM curriculum blends those subjects in order to teach “21st-century skills,” or tools students need to have if they wish to succeed in the workplace of the “future.” The idea is that in order to be prepared for jobs and compete with students from different parts of the world, students here in the US need to be able to solve problems, find and use evidence, collaborate on projects, and think critically. Skills, the thinking goes, that are taught in those subjects.