The California Science Project (CSP) is a university-based network providing the infrastructure across the state for high-quality professional development to pre-K through university teachers. CSP utilizes highly skilled teams of educators and scientists drawn from universities and school districts working towards the common goal of improving science education for all California students, with a special focus on the needs of English learners and high-need schools.

CSP is a network comprised of 18 regional sites situated across the state, housed in the departments of science at campuses of the University of California, the California State University, and independent universities. Each year, scholars and teachers from these sites work collaboratively to design, implement, evaluate, and refine professional development programs in an effort to enhance K-12 teacher's content knowledge and instructional strategies in accordance with the California Science Content Standards. On average, CSP programs works annually with more than 4200 teachers from 1300 schools across the state.

This collaborative network is dedicated to providing the highest quality science instruction, with a special focus on meeting the needs of English learners (as articulated through the Common Core State Standards), native speakers with low literacy, and students from economically disadvantaged communities. Headquartered at the University of California - Riverside, CSP belongs to a larger network of discipline-specific programs known as the California Subject Matter Projects, administered by the University of California, Office of the President.