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# Metric system

### Why didn’t we change to the Metric system, like the rest of the world?

Some common conversion factors:

## 4. Show me that you know the English system

Copy this into your notes, and fill in the blanks: But don’t look the answers up: We’re testing to see if we really, truly know the English system!

### Area

Unit Divisions SI Equivalent

## 1233.482 m3

Unit Divisions SI Equivalent

Conversions

## 373.2417216 g

Most common measures shown in italics
Exact conversions shown in bold

## 6. How to do Metric conversions

### Count the number of lines down the table; move the decimal this many spaces right.

metric system table

## Learning standards

2016 Massachusetts Science and Technology/Engineering Curriculum Framework
Science and Engineering Practices: 5. Using Mathematics and Computational Thinking:
Apply ratios, rates, percentages, and unit conversions in the context of complicated measurement problems involving quantities with derived or compound units (such as mg/mL, kg/m 3, acre-feet, etc.).

National Council of Teachers of Mathematics
Students need to develop an understanding of metric units and their relationships, as well as fluency in applying the metric system to real-world situations. Because some non-metric units of measure are common in particular contexts, students need to develop familiarity with multiple systems of measure, including metric and customary systems and their relationships.

National Science Teachers Association
The efficiency and effectiveness of the metric system has long been evident to scientists, engineers, and educators. Because the metric system is used in all industrial nations except the United States, it is the position of the National Science Teachers Association that the International

Metric system tutorial
http://www.chemistryland.com/CHM151W/01-Foundation/Metric/Metrics151.html