SEQUENCE Amazing Structures: Building a Subway

How long does it take to build an airport or a highway? Emphasizing the process of creation from idea to execution, these books illuminate the building sequence for young readers. A running timeline on each spread highlights each step. Elementary readers will follow the sequence of the process taken to build an extension of a subway system, from the proposal, planning, tunnel digging, and construction of the train and tracks. A progressive visual timeline builds throughout the book. A table of contents, glossary, books and websites, and an index are included.