Gives facts about familiar animals, such as how often a snake sheds its skin and how many pounds a baby blue whale gains in a week, and shows how to use multiplication to determine further information.
This volume uses the Census categories of population, gender, and age as basis for illustrating basic concepts about line graphs and charts. Includes a multitude of charts that display interesting and relevant facts about the America's changing population as far back as the 1800's.
This book introduces basic addition and subtraction problems through the chronological overview of exploration in North America. Includes artifacts such as an excerpt from Champlain's book about his voyage, in addition to an early map of New Amsterdam.
Gives facts about the history of space exploration, from Galileo's telescope to the International Space Station, and shows how to use a timeline to organize the information and learn more.
This journey into the past explores our place-value number system through a survey of the history of the number zero. Includes comparative graphs of Chinese numerals, Hindu-Arabic numbers, and Babylonian cuneiform.
This book illustrates how to understand and represent numbers in the billions through learning about the Hubble Space telescope. Includes a concise explanation of how telescopes operate, a brief history of telescopes, along with colorful photographs accompanied by word problems and explanations.
This fascinating paperback describes the construction and history of the Erie Canal. It uses the information to illustrate elementary division. Includes a scanned photocopy of a weekly toll collection statement from 1860.
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