Hidden Human Computers discusses how in the 1950s, black women made critical contributions to NASA by performing calculations that made it possible for the nation’s astronauts to fly into space and return safely to Earth. Aligned to Common Core Standards and correlated to state standards.
This title examines an important historic event - the transcontinental railroad. Easy-to-read, compelling text explores the events surrounding the planning, construction, and completion of the first transcontinental railroad in the United States, key people involved, and its impact on society. Features include a table of contents, a timeline, facts, additional resources, Web sites, a glossary, a bibliography, and an index.