Unit 1:
Mode, Median, and Range-
Describes sets of data. (2,4,3,7,5,2,1)
Mode-Number that occurs most often in a set of data
Median-Middle number in a set of data
Range-The span of numbers that a set of data includes. (subtract the highest and lowest #)
Example:
(1,2,2,3,4,5,7) mode=2, median=3, range=6
Describes sets of data. (2,4,3,7,5,2,1)
Mode-Number that occurs most often in a set of data
Median-Middle number in a set of data
Range-The span of numbers that a set of data includes. (subtract the highest and lowest #)
Example:
(1,2,2,3,4,5,7) mode=2, median=3, range=6
Line Plots-
Represents and organizes all data on a number line. The graph needs to have a title. The first number in the set is labeled first (it does not have to be one). Then you include every single digit inbetween the first and last number along the bottom whether or not they are included in the data set.
Example:
Number Patterns/Picture Patterns-
These are repeating patterns using numbers or pictures.
Example: What is the missing number in the pattern: 3, 6, _, 9, 12, 15
H.O.Q. - What would be the 11th and 13th number be in this number pattern?
1, 4, 7, 10, ...
Example: abb,abb,abb,abb,... would represent a picture pattern of heart, star, star, heart, star, star
Equations-
These are problems that have a variable that we need to solve the problem. They have an equal sign.
Example: 4 + n = 12 n= 8
H.O.Q. - What does the variable 'n' stand for in the equation 4 x n = 144 ?
n= 36
Expressions -
These represent a problem, but do not have an equal sign and are not meant to be
solved.
Example: 500-n or 500 + 54
H.O.Q. - Mr. Tack has $500. He spent $45. Write an expression to represent the information. 500-45
Inequalities -
We use this to compare numbers or expressions. Using the symbols <, >, or =
Example:
4+2 = 2x3 4+1 > 1x2 3-2 < 4x1
These are repeating patterns using numbers or pictures.
Example: What is the missing number in the pattern: 3, 6, _, 9, 12, 15
H.O.Q. - What would be the 11th and 13th number be in this number pattern?
1, 4, 7, 10, ...
Example: abb,abb,abb,abb,... would represent a picture pattern of heart, star, star, heart, star, star
Equations-
These are problems that have a variable that we need to solve the problem. They have an equal sign.
Example: 4 + n = 12 n= 8
H.O.Q. - What does the variable 'n' stand for in the equation 4 x n = 144 ?
n= 36
Expressions -
These represent a problem, but do not have an equal sign and are not meant to be
solved.
Example: 500-n or 500 + 54
H.O.Q. - Mr. Tack has $500. He spent $45. Write an expression to represent the information. 500-45
Inequalities -
We use this to compare numbers or expressions. Using the symbols <, >, or =
Example:
4+2 = 2x3 4+1 > 1x2 3-2 < 4x1
Coordinate Grids/Planes-
These are the grids that we use to plot ordered pairs. They have an 'x' axis that is horizontal, and a 'y' axis that is vertical. 'x' comes first and then 'y'. (It is just like playing the game "Battleship")
Example:
(x,y)...(3,4)...we would move to the right three spots and up four. "over, up"
Function Tables-
These are input/output tables in which we apply a rule. The rule is stated in an expression.
Example:
In Out
5 10
3 6
10 20
I know that the rule is n x 2 because I can apply it to all input numbers to get the output
These are input/output tables in which we apply a rule. The rule is stated in an expression.
Example:
In Out
5 10
3 6
10 20
I know that the rule is n x 2 because I can apply it to all input numbers to get the output