My research interests are broadly focused on cultivating effective K-16 STEM learning environments that effectively promote students’ science learning. To support these efforts, I have secured over $2.5 M in external funding from NSF, USDA-NIFA, state agencies, foundations, and private donations. My current research and development efforts focus on K-16 teaching and learning about water and water systems through the MoHSES, WELL, WELS2, E2FEW, and NE WETS projects. The Understanding Inheritance in Corn (UnICORN) project involves research and development on 3rd-grade students’ learning about basic principles of inheritance through plant systems. Prior work include the PIESC3 and RAES projects, which focused on preservice and inservice elementary teachers’ learning, use of science curriculum materials, formative assessment practices, and developing pedagogical design capacities, as well as student learning.