National Standards and State Curriculum Frameworks
From the Eisenhower National Clearinghouse.

National Standards for Civics and Government,
K-4, 5-8, 9-12

National Standards for Music
Music Curriculum (K-12)

National Council for Curriculum and Assessment
Organization devoted to improving the quality of education at primary and secondary levels through curriculum reform and reform of assessment procedures.

National Science Education Standards
The standards, published in 1995, present a vision of a scientifically literate populace. They outline what students need to know, understand, and be able to do to be scientifically literate at different grade levels.

The National Curriculum
The National Curriculum for England. Downloadable pdf files of all the National Curriculum books.