Rational Numbers

Note: This is NOT the video lesson page. If you are trying to watch a video lesson for homework, click here: https://sites.google.com/a/kcsd96.org/mrs-didech/lessons/video-lessons

Rational Number: A number that can be expressed as a ratio or fraction. For example, -4 can be expressed as -4/1. Another example is that 0.3 (repeating) can be expressed as 1/3.

Integer: An integer is any whole number, positive or negative, and 0. For example, -3, -2, -1, 0, 1, 2, and 3 are all integers.

Opposites: The opposite of an integer is the integer that is an equal distance from 0, but in the opposite direction. For example, 5 is the opposite of -5. Positive numbers have a negative opposite and vice versa.

Absolute Value: The absolute value of a number is its distance from 0. Distances are positive, so absolute value is positive. The absolute value of a number is written as such: |x|. So the absolute value of -12 can be written as |-12| and equals 12.

Ordering integers: Plot the given numbers on a number line and read them left (lowest negative) to right (highest positive).

Students Teaching Students:

Emily and Becky (Central Tendencies, Decimal Operations, Absolute Value, OOOps Slide Show)

Jason (Absolute Value Video Lesson)

Song about number lines

http://www.youtube.com/watch?v=6EWq9EZmIKg

Song about integers

http://www.youtube.com/watch?v=gb-UqwUZfG4

Absolute Value

http://www.ixl.com/math/grade-6/absolute-value-and-opposite-integers

Absolute Value

http://www.khanacademy.org/math/algebra/absolute-value/v/absolute-value-1