Integers Unit Lesson: Integers and Absolute Value Where do we use integers in the Real World? Temperature Elevation (Death Valley, New Orleans) Stock Market Debt

Integers: Positive, negative whole numbers and zero Examples: 18 ft above sea level: 18 ft 100 ft below sea level: -100 ft 10 seconds before launch: -10 sec Are the following numbers integers? Write yes or no. 1.) 8 ____________2.) 2.65 ___________ 3.) -4 ___________4.) ___________ 5.) Give an example of an integer _______________ 6.) Write a number that is not an integer _________

Opposites: Two numbers that are the same distance from zero Examples: Find the opposite. a.) 4 b.) -3 c.) 0 d.) graph -5 and its opposite on the number line

Absolute Value: A number's distance from zero (symbol: ) Examples: Find the absolute value. a.) -5 = b.) 7 = c.) 9 = d.) 0 = Important: Absolute value is always positive, except zero

Comparing Integers: The further to the right a number is on the number line, the greater the number Use the number line above to compare the integers. Use >, < or =. a.) b.) c.) d.) e.) -4 -3

Order from least to greatest. Use the number line to help. 1.) -3, 5, -4, 0_______________________ 2.) -4, 2, 0, -1 _______________________ 3.) -2, 3, -5, 1 _______________________

Demonstrate Understanding: Integers and Absolute Value 1.) Compare: ) Graph the integers on the number line. Then order from least to greatest: -11, - 2, 0, 2, 7, -3 3.) Graph -3 and its opposite on the number line

4.) -25.) 78 6.) 0 Find each absolute value. Write each opposite. 7.) -58.) 99.) 4