Introduces the mathematical concept of proportions by using examples of the money and time used to build the transcontinental railroad, and provides a brief history of the railroad and its impact upon the United States.
Introduces the mathematical concept of proportions by using examples of the money and time used to build the transcontinental railroad, and provides a brief history of the railroad and its impact upon the United States.
The Big Book version of The Transcontinental Railroad. This book follows the creation of the Transcontinental railroad, and uses historical examples to illustrate and challenge readers into solving problems using proportions. Includes detailed maps, black-and-white photographs of the railroad construction, and portraits of figures who were instrumental in support and creation of the railroad.