This study examines a family literacy intervention conducted in two first-grade classrooms with culturally diverse student populations. In the treatment and control classrooms, six parents and a classroom teacher learned practices for building home-school partnerships. Data were analyzed to determine changes in home-literacy practices, increases in parents' knowledge literacy instruction, and changes in children's literacy achievement. Data analyses demonstrated that participating parents showed significantly greater usage of effective storybook reading strategies before and after reading. Parental and teacher participation resulted in statistically significant differences in students' scores on the Concepts of Print assessment, compared to students in the control classroom.