The Learning Engineering and Practice (LEAP) group explores the intersection of extended reality learning experiences, educational technologies, and pedagogy and teaching in STEM higher education and workforce development. We use pedagogical and design principles to solve challenges in learning and human productivity to better meet the quickening and evolving demand for STEM competencies. We use a research-to-practice approach to (i) build novel learning systems and tools that benefit individuals and groups, which in turn (ii) serve as testbeds for mixed-method and learning analytics research to understand how people learn, yielding (iii) research insights we use to improve learning.