This document presents text and data tables excerpted from the 1999 U.S. Department of Education's "Twenty-First Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act (IDEA)" (1999) related to two programs: the Early Intervention Program for Infants and Toddlers with Disabilities, Part C of IDEA, and the Preschool Grants Program, Part B of IDEA. Section 1, on context and environment, consists of three modules which address: parent involvement in educating children with disabilities; providing access to the general education curriculum for students with disabilities; and developing a highly trained teacher workforce. Section 2, on student characteristics, provides excerpted text on children ages birth through 5 served under IDEA. Section 3 is on programs and services and the excerpted sections focus on educational environments for students with disabilities. The final section provides results from the "Interim Report from the National Assessment" and from state improvement and monitoring efforts. Twenty-four data tables are presented for IDEA Part B and Part C, demographics, state grants, and data notes. Examples of tables include number and percentage of children served by age and disability, teachers for ages 3 through 5, and early intervention settings. Each section contains references. (DB)