DOUBLE TAP TO ZOOM WITH PHONE OR TABLET and outdoor curricula. The STEM center should allow easy access for children and welcome their involvement. If the center is located in a dark corner of the classroom, children may be less likely to explore it. This chapter describes twenty STEM learning centers to guide teachers in integrating science, mathematics, technology, and engineering. Each of the following subcategories are a focus of five centers: physics, life science, earth science, and mathematics (algebra, geometry, number and operations, measurement, and data analysis). Each center integrates learning objectives from at least one other STEM discipline, and often two or three. Learning through inquiry is the major goal of each center and is therefore highlighted in each description. Related background infor- mation for teachers in science and mathematics is also included. COPYRIGHTED MATERIAL st e m le ar n i ng c e n t e r s 17