| A | B |
|---|
| factor | One of two or more numbers multiplied to find a product. |
| product | The answer to a multiplication problem. |
| comparison | A method of showing whether one quantity is greater than, less than, or equal to another quantity. |
| area | The amount of surface covered or enclosed by a figure measured in square units. |
| combination | A selection of members of a set when the order is not important. |
| equal groups | Groups that have the same number of objects. |
| array | An arrangement of objects, pictures, or numbers in equal columns and equal rows. |
| function | A relationship between two sets of numbers. |
| variable | A letter or a symbol that represents a number in an algebraic expression. |
| equation | A statement that two expressions are equal. |
| parentheses | Symbols used to group numbers or variables in an equation or expression. |
| misleading | Language in a comparing sentence that may cause you to do the wrong thing. |
| commutative property | The property that states that changing the oder in which numbers are multiplied does not change the product. |
| associative property | The property that states that changing the grouping of factors does not change their product. |
| distributive property | The property that states that when two addends are multiplied by a factor, the product is the same as when each addend is multiplied by the factor and those products are added. |
| expression | One or more numbers, variables, or numbers and variables with one or more operations signs. |
| example | A proposed problem, used to prove that a mathematical property or argument applies to a specific case. |
| counterexample | An example that proves that a general statement is false. |
| division | An operation that tells how many groups there are and how many are in each group. |
| quotient | The answer to a division problem. |
| multiple | The product of a given whole number and any other whole number. |
| rule | A standard method or procedure for solving a class of problems. |
| greater than | A number of larger value than another number. |
| less than | A number of smaller value than another number. |
| meter | The basic unit of length in the metric system. A meter is a little longer than a yard. |
| decimeter | A metric unit of length equal to one tenth of a meter. |
| centimeter | A metric unit of length equal to one hundredth of a meter. |
| millimeter | A metric unit of length equal to one thousandth of a meter. |
| perimeter | The dsitance around a figure. |
| base | The bottom of a polygon or solid. |
| height | The perpendicular distance from a base of a figure to the highest point. |
| acute angle | An angle that measures less than 90 degrees. |
| right angle | An angle that measures 90 degrees. |
| obtuse angle | An angle that measures more than 90 degrees and less than 180 degrees. |
| parallelogram | A quadrilateral in which both pairs of opposite sides are paralle and opposite angles are congruent. |
| perpendicular | Lines, line segments, or rays that form right angles where they intersect. |
| dimensions | A way to describe how a figure can be measured. The height, length, or width. |
| complex figures | A figure made by combining simple geometric figures like rectangles and triangles. |
| hexagon | A six-sided polygon. |
| pentagon | A polygon with five sides. |
| right triangle | A triangle with one right angle. |
| acute triangle | A triangle in which each of the three angles is acute. |
| obtuse triangle | An triangle with one angle that measures more than 90 degrees. |
| equilateral triangle | A triangle that has three congruent sides and three congruent angles. |
| isosceles triangle | A triangle with at least two congruent sides. |
| scalene triangle | A triangle with no equal sides. |
| square unit | An unit of area equal to the area of a square with one-unit sides. |
| congruent | Exactly the same size and shape. |
| standard form | A way to write a number that shows only its digits. |
| word form | A way to show a number using words. |
| expanded form | A way to write a number that shows the place value of each digit. |
| pictograph | A graph that uses symbols to show data. |
| scale | Numbers or marks arranged at regular intervals that are used for measurement or to establish position. |
| estimate | A number close to an exact amount. |
| bar graph | A graph that uses bars to show data. |
| discrete data | Data that involve counting. |
| continuous data | Data that represent an accumulation without interruption. |
| change-plus problem | A change situation that can be represented by addition. |
| change-minus problem | A change situation that can be represented by subtraction. |
| situation equation | An equation students write to represent a story problem. |
| solution equation | A situation equation that has been rewritten so that the unknown is on the right side of the equals sign. |
| range | The difference between the greatest number and the least number in a set of data. |
| median | The middle number when a set of numbers is arranged in order from least to greatest. |
| mode | The number or numbers that occur the most often in a set of data. |
| hypothesis | A statement used as the basis of an investigation. |
| categorical data | Data expressed as words that represent categories. |
| numerical data | Data that consists of numbers. |
| decompose | Te break apart a number into smaller parts. |
