Read all about numbers

Explains that age is indicated in terms of numbers and determined by counting; then shows that age is measured in time periods, generations, and life spans.

Discusses the inch-pound system used in the United States to measure size, weight, height, and distance and the metric system used for the same purposes elsewhere.

Discusses the development of numbers and systems of counting to answer the question "How many?".

Explains such concepts as money, currency, paper money, banks, and banking services.

Briefly explains the importance of numbers in sports to determine such things as the size of the play area, the length of the game, and the score.

Describes some of the ways we measure how fast animals, people, vehicles, light, and other things move.