| A | B |
|---|
| Accuracy | Quality of being true, correct, or exact; precision; exactness. The degree of correctness of a quantity or expression. |
| Caliper | A measuring tool with two usually adjustable jaws used especially to measure thickness or diameter. |
| Customary System | Also referred to as the English or Standard system of measuring. The measuring system based on the foot, second, and pound as units of length, time, weight, or mass. |
| Denominator | Divisor; the number below the line in a fraction. |
| Diameter | A straight line passing from side to side through the center of a circle or sphere. |
| Measurement | Collecting data in a quantifiable manner. |
| Metric System | The decimal measuring system based on the meter, liter, and gram as units of length, capacity, and weight or mass. |
| Micrometer | A gauge which measures small distances or thicknesses. |
| Numerator | The number above the line in a fraction showing how many of the parts indicated by the denominator is taken. |
| Precision | The degree to which several measurements or calculations show the same or similar results. |
| Unit | A standard quantity in terms of which other quantities may be expressed. |
| Kilometer | 1000 meters |
| Meter | 10 decimeters |
| Meter | 100 centimeters |
| 3.6 kilometers | 3600 meters |
| 1 Foot | 12 inches |
| 1 yard | 3 feet |
| 3 feet | 1 yard |
| 10 millimeters | 1 centimeter |
| 1000 millimeters | 1 meter |
| 4/8 inches | 1/2 inch |
| 11 1/2 inches | 11.5 inches |
| 3/4 inches | .75 inches |
| 8 1/4 inches | 8.25 inches |
| Precision Measurement Tool | Dial Caliper |
| Perpendicular | Lines that inersect at 90 degree anglel |
| Radius | Line from center to edge of circle. |
| Exmaple of a standard measurment | inch |
| Example of metric measurement | centimeter |
