Louisiana Administrative Code
Title 28 - EDUCATION
Part CXLI - Bulletin 127-LEAP Alternate Assessment, Level 1 (LPAA 1) Extended Standards
Chapter 5 - Mathematics
Subchapter A - General
Section CXLI-505 - Definitions

Combinations-sets containing a certain number of objects selected from another set. The combinations of three items from the set {a, b, c, d} are: {a, b, c,}, {a, b, d}, {a, c, d}, {b, c, d}. {a, b, c} and {b, a, c} are considered to be the same set.

Computational Fluency-the level of skill reached when a person is able to execute an algorithm or procedure efficiently and correctly.

Coordinate Systems-systems used to locate points using lines or points.

Expanded Form-the form of a number written as a sum to show place value. For example, the expanded form of 367 is 300 + 60 + 7.

Independent Events-events that have no influence on each other. For example, flipping "tails" with a coin and rolling a four with a die are independent events.

Manipulatives-concrete, physical objects used to help illustrate mathematical concepts.

Mental Math-computations and estimations performed without the aid of paper and pencil.

Model-simulation of a real object that has explanatory power but that typically differs in size, scale, and/or detail; examples include plan, scheme, structure, or mathematical equation.

Mutually Exclusive Events-two or more events, each of which precludes all the others. For example, the people voting in a presidential election and the people who are celebrating their fifteenth birthday on that election day are mutually exclusive events.

Outcomes-results that are possible from an experiment or simulation. For example, the possible outcomes of rolling a six-sided number cube are rolls of 1, 2, 3, 4, 5, and 6.

Permutations-the ordered arrangements of the elements of a set. For example, the permutations of the list {A, B, C} are (1) {A, B,C}, (2) {A, C, B}, (3) {B, A, C}, (4) {B, C, A}, (5) {C, A, B},and (6) {C, B, A}.

Pictograph-a visual representation of statistical data that uses pictures to indicate value or quantity.

Picture Graph-see pictograph.

Polynomial Expression-a mathematical expression that is the sum of terms, each of which is the product of a constant and a non-negative power of a variable or variables. For example, the expression is a polynomial expression.Polynomial Expression-a mathematical expression that is the sum of terms, each of which is the product of a constant and a non-negative power of a variable or variables. For example, the expression 5 x 7 + 11 x 2 + 7 x + (-3)is a polynomial expression.

Precision-the degree of specificity to which a measurement/value/quantity is determined. For example, "The measurement is precise to the nearest millimeter."

Probability-a number between 0 and 1, inclusive, which indicates the likelihood of an event occurring. For example, the probability of rolling a 1 on a fair, six-sided number cube is 1/6.

Range-the absolute difference between the greatest and least value in a set of data. For example, the range of the data set {7, 8, 12, 17, 23} is 16 (23-7).

Rational Number-any number that can be written as a fraction in which both the numerator is an integer and the denominator is a natural number. For example, 3/7 is a rational number since it can be written as a fraction.

Scatter Plot-a two-dimensional graph of a collection of points.

Standard Form-the form in which numbers are traditionally written. For example, 367 is in standard form.

Symbolic Representation-a representation that uses symbols to model a situation or event. For example, the circumference of a circle is found by multiplying the diameter by pi. The symbolic representation that models this calculation is C= [pi] d.

AUTHORITY NOTE: Promulgated in accordance with R.S. 17:24.4.