In the integrated version of IQWST, each of the 12 modules integrates at least two disciplines: Physics, Chemistry, Life Science, Earth Science, and/or Engineering Design. At IQWST’s foundation is the latest research on how students learn and how they learn science in particular, the very research on which the Framework for K–12 Science Education and the Next Generation Science Standards are also based. At its core, IQWST engages students in scientific practices as they experience, investigate, model, and explain phenomena while learning core ideas and engaging in concepts that cross disciplinary boundaries. Students build understanding by connecting ideas from lesson to lesson, from module to module, and across the middle grades.