## Measurement Resources

### General Measurement Resources for Students

Contents

For more on measurement, search or browse the measurement pages in the Internet Mathematics Library.

### Activities

Albert Inchworm's Activity Page
How Big is a Hand?
Exploring the world of big and small: an Albert Inchworm Activity Page for grades K-2. Use a set of Inchworms or Albert's Inchworm Friends (at the bottom of the page) to measure the Big Hand.
Inching Around
Exploring the world of big and small: an Albert Inchworm Activity Page for grades K-2. A chair is "big." Count how many Inchworms or Albert's Friends you need to measure something big in your room. A pencil or a cup is "small." How small? Inch around your room and measure ten things!

### Reference Materials

Math2.org (formerly Dave's Math Tables) (Manura)
A table of areas, volumes, and surface areas from a collection of useful math reference tables, formatted especially for the Web.
How Many? A Dictionary of Units of Measurement (Rowlett)
A dictionary of both metric (SI) and English measurement units, with history, links to related sites, and a bibliography.
Metric Conversion Factors
This list from the Washington State Department of Transportation provides the conversion relationship between U.S. customary units and SI (International System ) units.
Measuring the Heights of Trees (Zimaths)
A discussion of an ancient method of measuring trees.
Metric System and Unit Conversion (Logan)
Advantages of the metric system: it was based on a decimal system (i.e.: powers of ten) and therefore simplifies calculations; it is used by most other nations of the world, and therefore has commercial and trade advantages. If an American manufacturer with domestic and international customers is to compete, it must absorb the added cost of dealing with two systems of measurement. List of prefixes, types of measure.
Trigonometry - Measure of an Angle (S.O.S. MATHematics)
A description of angle measures using the unit circle

### Projects and Competitions

Measurement in Motion Math/Science Competition (Learning in Motion)
Pose an interesting math or science question, based on either a supplied QuickTime movie or a QuickTime movie of your own. Then use Measurement in Motion to investigate and analyze the movie, and present your results. Eligible students must be enrolled in a K-12 school within the United States or its territories, and be sponsored by a teacher. Entries can be submitted by a single student or a group of students.
The Noon Observation Project (Levin, Rogers, Waugh & Smith)
A joint effort among interested schools worldwide in accurately estimating the circumference of the earth. Mathemetics (algebra, geometry, trigonometry, elementary statistics), science, social science, social studies, and geography can be enhanced through this project. How to compute local noon at your location; a form for submitting your Noon Observations; an explanation of the formulas for computing the Earth's circumference from the shadow lengths; Eratosthenes.

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Mara Landers