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6th Math Vocab
Mathematics Assessment
| Term | Definition |
|---|---|
| Chord | A line segment whose endpoints are on a circle |
| Circumference | The distance around a circle |
| Composite number | A whole number having more than two factors |
| Diameter | A line segment that has endpoints on a circle and passes through the center of the circle |
| Expanded notation | A way to write numbers that shows the value of each digit (eg, 4372 = 4000+300+70+2) |
| Greatest common factor (GCF) | The largest factor that 2 or more numbers have in common |
| Heptagon | A polygon with 7 sides |
| Histogram | A bar graph in which the labels for the bars are numerical intervals |
| Hypotenuse | The longest side of a right triangle (which is also the side opposite the right angle) |
| Least common denominator (LCD) | The least common multiple of the denominators in two or more fractions |
| Least common multiple (LCM) | The smallest number, other than zero, that is a common multiple of two or more numbers |
| Leg (of a right triangle) | Either of the two sides that form the right angle in a right triangle |
| Line plot | A graph showing the frequency of data on a number line |
| Nonagon | A polygon with 9 sides |
| Plane | A flat surface that extends infinitely in all directions |
| Prime number | A whole number that has exactly two factors, 1 and itself |
| Quadrants | The four regions of a coordinate plane that are separated by the axes |
| Radius | A line segment that has one endpoint on a circle and the other endpoint at the center of the circle |
| Range | The difference between the greatest and least numbers in a set of data |
| Rate | A ratio that compares two quantities having different units (eg, 95 miles in 2 hours) |
| Ratio | A comparison of two numbers using division |
| Regular polygon | A polygon that has all sides congruent and all angles congruent |
| Repeating decimal | A decimal that has a repeating sequence of numbers after the decimal point |
| Similar polygons | Polygons that have the same shape, but not necessarily the same size corresponding sides are proportional |
| Straight angle | An angle with a measure of 180º |
| Terminating decimal | A decimal that contains a finite number of digits |
| Transformation | The moving of a figure by a translation (slide), rotation (turn) or reflection (flip) |
| Unit price | The price of a single item or amount (eg, $350 per pound) |
| Unit rate | A rate with the second term being one unit (eg, 50 mi/gal, 45 km/sec) |
| Venn diagram | A diagram that shows relationships among sets of objects |
| Whole number | Any of the numbers 0, 1, 2, 3, 4, 5, … (and so on) |
| X-axis | The horizontal number line on a coordinate plane |
| Y-axis | The vertical number line on a coordinate plane |