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Vocabulary Bee
| Term | Definition |
|---|---|
| Addition and subtraction within 5, 10, 20, 100, or 1000. | Addition or subtraction of two whole numbers with whole number answers, and with sum or minuend in the range 0-5, 0-10, 0-20, or 0-100, respectively. |
| Additive inverses | Two numbers whose sum is 0 are additive inverses of one another. |
| Bivariate data | Pairs of linked numerical observations. Example: a list of heights and weights for each player on a football team. |
| Box plot | A method of visually displaying a distribution of data values by using the median, quartiles, and extremes of the data set. A box shows the middle 50% of the data. |
| Complex fraction | A fraction A/B where A and/or B are fractions (B nonzero). |
| Computation algorithm | A set of predefined steps applicable to a class of problems that gives the correct result in every case when the steps are carried out correctly. |
| Computation strategy | Purposeful manipulations that may be chosen for specific problems, may not have a fixed order, and may be aimed at converting one problem into another. |
| Congruent | wo plane or solid figures are congruent if one can be obtained from the other by rigid motion (a sequence of rotations, reflections, and translations). |
| Counting on | A strategy for finding the number of objects in a group without having to count every member of the group. |
| Dilation | A transformation that moves each point along the ray through the point emanating from a fixed center and multiplies distances from the center by a common scale factor. |
| Expanded form | A multi-digit number is expressed in expanded form when it is written as a sum of single-digit multiples of powers of ten. For example, 643 = 600 + 40 + 3. |
| Expected value | For a random variable, the weighted average of its possible values, with weights given by their respective probabilities. |
| First quartile | For a data set with median M, the first quartile is the median of the data values less than M. Example: For the data set {1, 3, 6, 7, 10, 12, 14, 15, 22, 120}, the first quartile is 6. |
| Fraction | A number expressible in the form a/b where a is a whole number and b is a positive whole number. |
| Independently combined probability models | Two probability models are said to be combined independently if the probability of each ordered pair in the combined model equals the product of the original probabilities of the two individual outcomes in the ordered pair. |
| Integer | A number expressible in the form a or -a for some whole number a. |
| Interquartile Range | A measure of variation in a set of numerical data, the interquartile range is the distance between the first and third quartiles of the data set. |
| Line plot | A method of visually displaying a distribution of data values where each data value is shown as a dot or mark above a number line. Also known as a dot plot. |
| Mean | A measure of center in a set of numerical data, computed by adding the values in a list and then dividing by the number of values in the list. |
| Mean absolute deviation | A measure of variation in a set of numerical data, computed by adding the distances between each data value and the mean, then dividing by the number of data values. |
| Median | A measure of center in a set of numerical data. The median of a list of values is the value appearing at the center of a sorted version of the list—or the mean of the two central values, if the list contains an even number of values. |
| Midline | In the graph of a trigonometric function, the horizontal line is halfway between its maximum and minimum values. Multiplication and division within 100. |
| Multiplicative inverses | Two numbers whose product is 1 are multiplicative inverses of one another. |
| Number line diagram | A diagram of the number line used to represent numbers and support reasoning about them. In a number line diagram for measurement quantities, the interval from 0 to 1 on the diagram represents the unit of measure for the quantity. |
| Percent rate of change | A rate of change expressed as a percent. Example: if a population grows from 50 to 55 in a year, it grows by 5/50 = 10% per year. |
| Probability distribution | The set of possible values of a random variable with a probability assigned to each. |
| Probability | A number between 0 and 1 used to quantify likelihood for processes that have uncertain outcomes - such as tossing a coin |
| Probability model | A probability model is used to assign probabilities to outcomes of a chance process by examining the nature of the process. The set of all outcomes is called the sample space, and their probabilities sum to 1 |
| Random variable | An assignment of a numerical value to each outcome in a sample space. |
| Rational expression | A quotient of two polynomials with a non-zero denominator. |
| Rational number | A number expressible in the form a/b or - a/b for some fraction a/b. The rational numbers include the integers. |
| Rectilinear figure | A polygon all angles of which are right angles. |
| Rigid motion | A transformation of points in space consisting of a sequence of one or more translations, reflections, and/or rotations. Rigid motions are here assumed to preserve distances and angle measures. |
| Repeating decimal | The decimal form of a rational number. |
| Sample space | In a probability model for a random process, a list of the individual outcomes that are to be considered. |
| Scatter plot | A graph in the coordinate plane representing a set of bivariate data. For example, the heights and weights of a group of people could be displayed on a scatter plot. |
| Similarity transformation | A rigid motion followed by a dilation. |
| Tape diagram | A drawing that looks like a segment of tape, used to illustrate number relationships. Also known as a strip diagram, bar model, fraction strip, or length model. |
| Terminating decimal | A decimal is called terminating if its repeating digit is 0 |
| Third quartile | For a data set with median M, the third quartile is the median of the data values greater than M. |
| Transitivity principle for indirect measurement | If the length of object A is greater than the length of object B, and the length of object B is greater than the length of object C, then the length of object A is greater than the length of object C. |
| Uniform probability model | A probability model which assigns equal probability to all outcomes. |
| Vector | A quantity with magnitude and direction in the plane or in space, defined by an ordered pair or triple of real numbers |
| Visual fraction model | A tape diagram, number line diagram, or area model |
| Whole numbers | The numbers 0, 1, 2, 3, ... |
Created by:
msmchugh2
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