Integers SOL 6.3 by Kathy Woodard. 6.3 The student will a) identify and represent integers; b) order...
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Transcript of Integers SOL 6.3 by Kathy Woodard. 6.3 The student will a) identify and represent integers; b) order...
Integers
SOL 6.3by Kathy Woodard
6.3 The student willa) identify and represent integers;b) order and compare integers; andc) identify and describe absolute value of integers.
Above Sea Level
Sea Level
Below Sea Level
Image from http://www.buzzhawaii.com/Tropical_Ocean_Fun_Cruise_-_Oahu
How Many Feet Above Sea Level?
http://geology.com/state-map/virginia.shtml
+166 ftRichmond
+5,729 ft
Mt. Rogers
Put the Data on a SpreadsheetFor each red dash enter the feet above sea level, and make a bar graph of the data to see a side view of VA!
How Many Feet Below Sea Level?
650 ft
Positive Numbers
Sea Level
Negative Numbers
Image from http://www.buzzhawaii.com/Tropical_Ocean_Fun_Cruise_-_Oahu
Google Earth Map
Feet above sea levelPositive
Feet below sea levelNegative
Graph of Feet Above or Below Sea Level for Virginia from Mountains to
Atlantic Ocean Floor
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
-25000
-20000
-15000
-10000
-5000
0
5000
10000 Positive numbers
Negative numbers
whole numbers, their negative opposites, and zero
Integers:
Positive numbersNegative numbers
Zero
http://www.showmethemath.com/Concepts_Explained/oppositeNumbers.html
Show Me the Math
Find the opposite of a given integer.
Opposite of an Integer
K A T H Y
K =A=T=H=Y=
Find the Value of a Point
Comparing Integers
• How can you tell which integer is greater?• Put them on a number line! Smaller <-------- ---------> Bigger
Practice
• Compare the integers by writing < or > • 6 -6• 0 -10• 5 7• 5 -7• 1 -8
Practice
• Compare the integers by writing < or > • 6 > -6• 0 > -10• 5 < 7• 5 > -7• 1 > -8
http://www.mathgoodies.com/lessons/vol5/compare_order.html
Real Life Integers
http://www.xpmath.com/forums/arcade.php?do=play&gameid=61
XP Math
Practice comparing integers.
Compare Integers
http://www.showmethemath.com/Concepts_Explained/absoluteValue.html
Show Me the Math
Good visualization of absolute value in an interactive applet.
Absolute Value
BrainPop Absolute Value
http://www.brainpop.com/math/numbersandoperations/absolutevalue/preview.weml
http://www.explorelearning.com choose Comparing and Ordering Integers
Explore Learning
Plot 4 integers on a number line and then click to show their opposites and absolute values.
Graph Integers & Absolute Value
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 -1
3. 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.
07 SOL 6.5*
06 SOL 6.5*
07 SOL 6.5*
08 SOL 6.5