Partners for Equitable Science Instruction (PESI) presented a 3 Dimensions of Science professional development (PD) workshop at TUSD’s Warren Elementary School. The Warren Curriculum Service Provider (CSP), Laurie Elling, reached out to PESI after participating in a TUSD Summer 2021 Science PD workshop where she learned about PESI’s mission to support science education. Warren is developing a STEM Lab at their school and asked for science PD support from PESI. PESI Instructors/Volunteers Barbara Casanova, Becky Cavazos, Caryl Crowell, Peggy Herron, Marleen Lyon and Esther Witt, helped with the 3 Dimensions of Science PD workshop followed by an extended hour of science kit support. PESI also provided Warren with several lists of suggested materials for the STEM Lab, some STEM website links and links to science related bibliographies. The display model of the 3 Dimensions of Science flower graphic used during the presentation was also donated to Warren for their STEM lab. Interested Warren teachers and staff signed up for the PESI group email list and will be receiving PESI Newsletters with news and information about PESI, local science related events and science professional development opportunities. PESI volunteers are looking forward to supporting Warren as they continue development of their new STEM Lab.