I design and study curriculum materials, assessments, and professional learning experiences for teachers in science. I work in partnership with school districts and state departments of education, and the research I conduct is in support of educational equity in three dimensions: (1) equitable implementation of the Next Generation Science Standards; (2) creating inclusive classroom cultures that attend to students’ affective experiences and where all students have authority for constructing knowledge together; and (3) connecting teaching to the interests, experiences, and identities of learners. I use a wide range of research methods, including one my colleagues and I developed called design-based implementation research, to test what we design.