Measurement: Length
Unit Review Sheet
These facts and definitions should be mastered throughout this unit. This page can be used for periodic review and study as you are finishing the unit and in the future.
Facts and Definitions
Lesson 1: Why Do We Use Standard Measurement Units?
- Standard units of measurement: agreed upon units of measurement that are typically used (for example, inch, foot, centimeter, meter)
Lesson 2: Inches
- United States customary system: the main system of measurement used in the United States (also called the US customary system)
- Inch: a unit of length in the US customary system
- Foot: a unit of length in the US customary system, equal to 12 inches
- Yard: a unit of length in the US customary system, equal to 3 feet or 36 inches
- Ruler: a tool for measuring length
- Measuring tape: a tool, also called a tape measure, for measuring length, often showing both inches and centimeters
- in.: the abbreviation for "inch"
Lesson 3: Inches and Feet
- ft: the abbreviation for "foot"
Lesson 4: The Metric System, Too
- Metric system: the system of measurement used in most countries other than the United States
- Meter: a metric unit of length, equal to 100 centimeters
- Centimeter: a metric unit of length
- Meter stick: a tool for measuring length, often showing centimeters and meters (metric) as well as inches, feet, and yards (US customary)
Lesson 5: More Work With Measurement Units
- cm: the abbreviation for "centimeter"
Lesson 6: Creating With Measurement
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Lesson 7: The Right Tools for the Job
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Lesson 8: Comparing Lengths
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Lesson 9: Gummy Worms and Measurement Data
- Line plot: graph that shows frequency of data along a number line
- Data: collection of facts, including numbers, words, measurements, and observations
Lesson 10: Measurement Practice and Problem Solving
- m: the abbreviation for "meter"
Final Project: Measurement in My World
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