Publisher of research-based curriculum materials for Pre-K, elementary and middle school teachers and students. The company focuses on the needs of elementary school teachers, students, and parents by developing researched-based, culturally responsive instructional materials in reading, writing, mathematics, and social studies for Grades Pre-K- 8. It also develops school districts customized programs to meet district and state standards. Many of its products are also available in Spanish. It has built custom programs for four of the nation's top 11 school districts including Chicago, Houston, Detroit and Hillsborough County, Florida.