# 01_metric - Lesson 1 The Metric System Ask someone how tall...

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Lesson 1: The Metric System Ask someone how tall they are and they'll probably tell you in feet and inches. This is surprising given that we are a metric country, but it is a traditional way of describing peoples' heights that has stayed with us. So why did we switch over to the metric system? The metric system started a couple hundred years ago in France. It was called " Le Système International d'Unités " which is why you sometimes hear it referred to as the SI system. It grew out of the need to have a standard system that everyone could agree on. In 1970 the Canadian government started the “metrication” of Canada. By the early 1980's the majority of Canadian measurements were metric. There are three core measurements to the metric system: length , mass , and time . Length The standard unit of length is the metre . Notice that it is spelled "metre", not "meter". Many textbooks published in the United States use the "Americanized" spelling with an "er" on the end. Originally the distance from the North Pole to the equator divided into little pieces was used as the standard for the metre.

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01_metric - Lesson 1 The Metric System Ask someone how tall...

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