The student will:a) identify and describe absolute value of integers.
Number line
• How far is 3 from zero?• 3 units
• How far is -3 from zero?• 3 units
• Why do the answers have the same value?• Because…
Distance
• A distance is never zero
Absolute Value is…
the distance of a number from zero on the number line regardless of
direction.
Absolute value is represent by the absolute value bars
6 6 6 6EX:
|x| the absolute value of x
• |3| asks how far from zero is 3?
• |-5| asks how far from zero is -5?
Activity
Absolute Value 2-3
1. Place the following points on a number line: Z: 4 M: -7 W: -10 T: 0
2. Write >, =, or < to compare the integers: 1 -13. Write >, =, or < to compare the integers: 3 -54. What is the opposite of 7?
5. Which of these are integers?½ 0 -300 4.75 27
6. What is the absolute value of -25 ?
7.
8.
Rational Numbers
The set of numbers that includes Natural numbers, Whole numbers, Integers and the values in between.
Positive numbersNegative numbers
Origin
Putting it all Together
Rational Number Song
2/3
