This report presents second year (2016-17) findings from the impact evaluation, focusing on classroom quality and children's learning. We report for SPP basic statistics that describe: the children served, children's learning and development including average gains during the year, and program quality. As context, we report similar information from other preschool studies including the Head Start Family and Child Experiences Survey (FACES). We report findings for subgroups of students and classrooms as well as the full sample. To estimate program impact we compare learning gains of SPP children to those of other children who did not attend SPP. Finally, to inform those developing and implementing the program we investigate relationships between SPP children's learning gains and their classroom experiences including observed quality. (author abstract)