Math vocabulary

Lessons 6-10

&

Investigation 1

Fraction

Numbers that name parts of a

whole

Denominator

The bottom number of a

fraction

Numerator

The top number of a fraction

Endpoints

Points at which segments end

Line

A straight collection of

points extending in opposite

directions without end

Metric System

An international system of

measurement based on multiples

of ten

Ray

A part of a line that begins at a

point and continues without

end in one direction

Segment

A part of a line with two distinct

endpoints

U.S. Customary System

A system of measurement used almost

exclusively in the United States

Perimeter

The distance around a closed,

flat shape

Counting Numbers

The numbers used to count; the

members of the set (1,2,3,4,5…)

Negative Numbers

Numbers less than zero

Number LineA line for

representing and graphing numbers. Each point on the

line corresponds to a number

Whole Numbers

The members of the set

(0,1,2,3,4…)

Celsius scale

A scale used on some

thermometers to measure

temperature

Even Numbers

Numbers that can be divided by 2

without a remainder;

members of the set (-4,-2,0,2,4)

Fahrenheit Scale

A scale used on some

thermometers to measure

temperature

Odd Numbers

Numbers that have a remainder of 1 when divided by 2; members of the set (-3,-1,1,3)

Scale

A display of numbers with an indicator to show

the value of a certain measure

Sequence

A list of numbers arranged

according to a certain rule

Term

Number in a sequence

Closed-Option Survey

A survey in which the possible

responses are limited

Histogram

A method of displaying a range of data. A

histogram is a special type of bar graph that

displays data in intervals of equal size with no space between them.

Open-Option Survey

A survey that does not limit the

possible responses

Survey

A method of collecting data

about a particular population

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