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5 & 6th Grade Terms
Studying for the PSSA's
33
Mathematics
6th Grade
03/21/2013

Additional Mathematics Flashcards

 


 

Cards

Term

 

Chord

Definition

 A line segment whose endpoints are on a circle[image]

Term

 

 

Circumference 

Definition

The distance around a circle

[image]

Term

Composite number

Definition

A whole number having more than two factors


Ex: 4,6,8,10,12,14,16,18, etc.

Term
Diameter
Definition

  A line segment that has endpoints on a circle and passes through the center of the circle.

[image]

 

Term

Expanded notation

Definition

  A way to write numbers that shows the value of each digit

(e.g., 4372 = 4000+300+70+2).

Term

Greatest common factor (GCF)

Definition

The largest factor that 2 or more numbers have in common. 

Ex. The GCF of 24 and 36 is 12 

Term

Heptagon

Definition

A polygon with 7 sides

[image]

Term

Histogram

Definition

A bar graph in which the labels for the bars are numerical intervals

[image]

Term

Hypotenuse

Definition

The longest side of a right triangle (which is also the side opposite the right angle)

[image]

Term
Least common denominator (LCD) 
Definition

The least common multiple of the denominators in two or more fractions

Ex. The LCD of 3/8 and 5/6 would be 24

Term

Least common multiple (LCM) 

Definition

 The smallest number, other than zero, that is a common multiple of two or more numbers.

Ex. The LCM of 4 and 16 is 16

Term

Leg (of a right triangle)

Definition

Either of the two sides that form the right angle in a right [image]

Term
Line plot
Definition

A graph showing the frequency of data on a number line[image]

Term

 

    Nonagon

Definition

 

A polygon with 9 sides.

[image]

Term

 

 

 

Plane

Definition

  A flat surface that extends infinitely in all directions.

 [image]

Term

Prime number

Definition

A whole number that has exactly two factors, 1 and itself

Ex. 3,5,7,11,13,17,19,etc.

Term

Quadrants

Definition

The four regions of a coordinate plane that are separated by the axes[image]

 

Term

Radius

Definition

   A line segment that has one endpoint on a circle and the other endpoint at the center of the circle

[image]

Term

Range

Definition

   The difference between the greatest and least numbers in a set of data.

                           

                  Ex. If a peice of data had the numbers 6,7,8,9,10 and 11 bees, the range bould be 5 bees.

 

Term

Rate

Definition

     A ratio that compares two quantities having different units

(e.g., 95 miles in 2 hours)

 

Term

Ratio

Definition

A comparison of two numbers using division.

Ex. 5/7

Term

Regular polygon

Definition

A polygon that has all sides congruent and all angles congruent[image]

Term

Repeating decimal

Definition

A decimal that has a repeating sequence of numbers after the decimal point.  

Ex. 0.3

Term

Similar polygons

Definition

Polygons that have the same shape, but not necessarily the same size.  Corresponding sides of similar polygons are proportional

[image]

Term

Straight angle

 

Definition

An angle with a measure of 180º

[image]

Term

Terminating decimal

Definition

A decimal that contains a finite number of digits

Ex.  1.2973

Term

Transformation

Definition

The moving of a figure by a translation (slide), rotation (turn) or reflection (flip)

[image]

Term

Unit price

Definition

The price of a single item or amount

(e.g., $3.50 per pound)

Term

Unit rate

Definition

A rate with the second term being one unit

(e.g., 50 mi/gal, 4.5 km/sec)

Term

Venn diagram

Definition

     A diagram that shows relationships among sets of objects.

[image]

Term

Whole number

Definition

Any of the numbers

Ex. 0, 1, 2, 3, 4, 5, … (and so on)

Term
X-axis
Definition

The horizontal number line on a coordinate plane

[image]

Term

Y-axis

 

 

Definition
The vertical number line on a coordinate plane[image]
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