Geometry
Graphs
Symbols
Measurement
Parts of Equations
100
Circle
What is a 2-dimensional shape made by drawing a curve that is always the same distance from a center?
100
X Axis
What is the line on a graph that runs horizontally (left-right) through zero?
100
<
What is the symbol < meaning less than?
Example: 5 < 10
5 is less than 10.
100
Perimeter
What is the distance around a two-dimensional shape? Example: 7 + 3 + 7 + 3 = 20
100
Variable
What is a symbol for a number we don't know yet? It is usually a letter like x or y.
Example: in x + 3 = 9, x is the variable.
200
Acute Angle
What is an angle less than 90° (90° is called a Right Angle)?
200
Y Intercept
What is the point where a line crosses the y-axis of a graph, and the value of y when x equals 0? Example: (0,1)
200
>
What is the symbol > meaning greater than?
Example: 20 > 10
20 is greater than 10.
200
Height
What is the distance from top to bottom, or at right angles from any base to the furthest corner?
200
Exponent
What is how many times to use that number in a multiplication, written as a small number to the right and above the base number?
Example: 42 = 4 × 4 = 16
300
Square
What is a 4-sided flat shape with straight sides where all sides have equal length, and every interior angle is a right angle (90°)? A square is also a Quadrilateral and a Regular Polygon.
300
Ordered Pair
What is two numbers, in parentheses, written in a certain order, used to show the position on a graph where the "x" (horizontal) value is first, and the "y" (vertical) value is second? Example: (6,4)
300
x or ( ) or *
What is the symbol for multiplication (or to multiply)? Example: 4 × 3 = 12
300
Volume
What is the amount of 3-dimensional space something takes up, or how much water could be in it? Example: the volume is length × width × height = lwh units3.
300
Coefficient
What is a number used to multiply a variable.
Example: 3y means 3 times y, and "y" is a variable, so 6 is a coefficient.
Variables with no number have a coefficient of 1.
Example: x is really 1x.
400
Quadrilateral
What is a flat shape with four straight sides?
400
Independent Variable
What is an "input" value of a function? For the equation y = 2x + 5, x is an Independent Variable (and y is a Dependent Variable).
400
%
What is percent, also known as parts per 100? Example: 25% means 25 per 100, or 25% of this circle is purple.
400
Area
What is the size of a surface, or the amount of space inside the boundary of a flat (2-dimensional) object such as a triangle or circle?
400
Numerator
What is the top number in a fraction, showing how many parts we have?
500
Triangle
What is a 3-sided polygon (a flat shape with straight sides) with all angles less than 90 degrees?
500
Dependent Variable
What is the "output" value of a function. The value depends on what you put into the function. For y = 2x + 5, y is the Dependent Variable. y is 9 if we put in x=2.
500
=
What is a symbol showing what is on the left of the sign is equal in value or amount to what is on the right of the sign?
Examples:
5 + 2 = 7 means that 5 + 2 is equal to 7
500
Temperature
What is the measurement of how hot or cold a thing is? Temperature is measured using a thermometer, usually in the Celsius or Fahrenheit scale.
500
Denominator
What is the bottom number in a fraction, showing how many equal parts the item is divided into.