Book excerpt: When children build with blocks, they are both literally and figuratively constructing their knowledge of the world. When we see children's construction play through the lens of architecture, we are able to support and extend children's learning on all four STEM subjects: science, technology, engineering, and math. Young Architects at Play is a guide for both teachers and parents and includes a diverse variety of activities and resources. More than 20 projects involve both traditional classroom materials like unit blocks as well as natural materials, found objects, cardboard, and authentic woodworking materials. Throughout the book, Ann Gadzikowski makes meaningful connections between STEM learning and the power of stories, both the children's own narratives as well as the rich diversity of stories and illustrations from children's literature.