##### Math 6

**IMPROPER ** ** FRACTION**

**A fraction that shows an amount GREATER than one whole. The
numerator is GREATER than the denominator. For example ⁷⁄₄ .**

**MIXED NUMBER**

**A number that has a WHOLE part AND a FRACTION part. For
example 1 ⁴⁄₅ .**

**RATIO**

**A comparison of 2 or more quantities measured with the same
unit. For example the number of girls to boys in the class is 6:9.**

**NUMERATOR**

**The part of a fraction that tells how many equal parts to
count. The TOP number in a fraction. For example in ⅔, the numerator
is 2.**

**DENOMINATOR**

**The part of a fraction that tells how many equal parts are in
one whole. The denominator is the BOTTOM number in a fraction. For
example ⅔, the denominator is 3. There are 3 parts in one whole.**

**ACUTE ANGLE**

**An angle that measures less than 90°. **

**OBTUSE ANGLE**

**An angle that measures more than 90° but less than 180°.**

**REFLEX ANGLE**

**An angle that measures more than 180° and less than 360°.**

**ANGLE**

**Forms when 2 lines meet creating a vertex.**

**RIGHT ANGLE**

**An angle that measures exactly 90° and usually indicated by a
small square in the angle.**

**STRAIGHT ANGLE**

**An angle that measures exactly 180°. It is a straight line.**

**VARIABLE**

**A letter that is used to represent a # in an equation or an expression.**

** 3b=12(eq) 4x – 2(ex)**

**CONSTANT**

**In Algebra, a number on its own - a fixed number. **

**2t + 5**

** (5 is constantly a pain in the butt and is in a time
out and can't play with anyone else)**

**NUMERICAL COEFFICIENT**

**A number used to multiply a variable.**

**4n-2**

** 4 is the term we are describing because it's madly in
love with the variable. He's always attached to the variable...ALWAYS!**

**X AXIS**

**The line on a graph that runs horizontally (left-right)
through zero.**

**OPERATION**

**A mathematical process. The most common are add,
subtract, multiply and divide (+, -, ×, ÷ ).**

**Y AXIS**

**The line on a graph that runs vertically (up-down) through zero.**

**ORDERED PAIR**

**Two numbers written in a certain order in parentheses like
this: (4,5) or (x,y). ** ** **

**Used to show the position on a graph, where the "x" (horizontal) value is first, and the "y" (vertical) value is second.**

**Here the point (12,5)**

**is 12 units to the right, and ** ** 5
units up.**

**EQUIVALENT**

**Having the same value.** ** **

**$1 = 100¢** ** **

**120 seconds = 2 minutes**

** 5n = 20**

**COMMON ** ** MULTIPLE**

**A number that is a multiple of 2 or more numbers.**

** 6 is a common multiple of 2 and 3**

**PRIME NUMBER**

**A number can be divided evenly only by 1 or itself 2, 3,
5, 7, 9, etc…**

**COMPOSITE NUMBER**

**A whole number that can be divided evenly by numbers other
than 1 or itself. 9=1x9, 3x3**

**COMMON ** ** FACTOR**

**A number that is a factor of the given numbers: 3 is a common
factor of 15, 9 and 21.**

**ORDER OF OPERATIONS**

**The rules of which calculation comes first in an expression. BEDMAS**

**INTEGER**

**A number that is either positive (+) or negative ( - ).**

** -23, -1, 5, 10, 97. The larger the NEGATIVE number
the smaller it is. The larger the POSITIVE number, the bigger the
number is.**

**POSITIVE INTEGER**

**Zero is neither negative nor positive.)5 is positive
five and it is found to the RIGHT of ZERO on the number line.**

**NEGATIVE INTEGER**

**Less than zero and written with a minus sign in front of it:
-5 is negative five and it is found to the LEFT of ZERO on the
number line.**

**ZERO PAIR**

**A pair of number with a positive and negative sign whose sum
is zero. (+,-) For example: +2 and -2 .**

**OPPOSITE INTEGER**

**For each + integer, there is a - integer, and these integers
are called opposites. For example, -3 is the opposite of 3.**

**EXPANDED FORM**

**Writing a number to show the value of each digit.**
** **

**It is shown as a sum of each digit multiplied by its matching place value (units, tens, hundreds, etc.)**

** 23 456 = 20000 + 3000 + 400 + 50 +6**

**STANDARD FORM**

**A general term meaning "written down in the way most
commonly accepted" usually in numbers. For example: 56 347.**

**DEGREE**

**A measure for angles.** **There are 360 degrees
** **in a full rotation (a circle). The **
**symbol for degrees is °. ** **Example: 90
degrees ** ** (90°) is a right angle.**

**TRIANGLE**

**The sum of the interior angles of every triangle is equal to 180°.**

**QUADRILATERAL**

**The sum of the interior angles of a quadrilateral is equal to 360°.**

**ISOSCELES TRIANGLE**

**A triangle with two ** **= sides, two = angles,
** **and one = line of ** **symmetry. The
angles ** **opposite the equal sides ** **
are also equal.**

**SCALENE TRIANGLE**

**A triangle with all s** **ides and all angles
** **of different lengths ** ** and
degrees. There is no line of symmetry either.**

**RIGHT TRIANGLE**

**A triangle that ** **has a right angle **
** (90°).**

**OBTUSE TRIANGLE**

**A triangle that ** **has ONE angle **
** greater than 90°.**

**PERIMETER**

**The distance around a two-dimensional shape.** **
**

**Example: it is the total OUTSIDE of a shape (add up every side).**

**IRREGULAR POLYGON**

**A polygon that does not have all sides equal and all angles
equal. Even if ONE side is different, it is one of these.**

**REGULAR POLYGON**

**A shape where ALL angles and ALL sides are equal.**

**TRANSLATION**

**Moving a shape, without ** **rotating or flipping it.**

**"Sliding". The shape still ** **looks
exactly the same, the shape is ** ** just in a
different place.**

**ROTATION**

**A circular movement. ** ** **

**There is a central point**

**that stays fixed and**

**everything else moves**

**around that point in a**

**circle. In other words, stick a NAIL in one corner and spin.**
**REFLECTION**

**An image or shape ** **as it would be seen
** ** in a mirror.**

**CONTINUOUS DATA**

**Data that can take any value (within a range)Example:
People's heights could be any value (within the range of human
heights), not just certain fixed heights.**

**DISCRETE DATA**

**Data that can only take certain values.For example: the
number of students in a class (you can't have half a student).**

**PROBABILITY**

**Probability is the chance that something will happen - how
likely it is that some event will happen.**

**THEORETICAL PROBABILITY**

**The likelihood that an outcome will happen.**

**In grade 6 terms, this is what is SUPPOSED to happen.**

**EXPERIMENTAL PROBABILITY**

**The likelihood that something occurs based on the RESULTS of
the experiment. In grade 6 terms, this is EXACTLY what happens when
you actually DO the experiment.**