The document provides instructions and templates for calculating a school's 2007 Base Academic Performance Index (API) or 2008 Growth API based on student test scores. Schools must have valid test scores from at least 100 students to receive an API. The templates separate test scores by grade level and subject area. Schools are instructed to enter valid student scores in the appropriate cells and the template will calculate the API score. Questions about the process can be directed to the California Department of Education.