A collection of 20 non-fiction titles in the "Windows on Literacy" program from National Geographic. The Fluent stage is levels 13-18, with Science topics that cover: science inquiry; physical science; Earth/space science; and life science. This kit includes a teacher's guide, with blackline masters; an assessment book and 3 copies of each title. (20 titles; 3 copies each/teacher's guide/assessment book).