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Brain Warm-Up Solve the equation 1.) 12 + x = 36 2.)11n = 121 3.) h – 21 = 37 Read, write and represent integers November 11, 2010 Ms. Latimer Vocabulary Integers – numbers Ex: (-3, -2, -1, 0, 1, 2, 3) used to represent real life quantities Words like: profit, increase, Positive Integers – gain and above indicate Integers > 0 positive integers Negative Integers – Integers < 0 Words like: loss, decrease, and below indicate a Opposites – Two negative integer Integers that are equal distance from Ex: 15, -15 are both 15 zero units away from zero Write the Integer Represented 1.) a $13 profit 2.) a 20 point decrease 3.) a gain of 9 yards 4.) a withdrawal of $15 5.) a deposit of $10 6.) the opposite of -48 7.) 19 feet below sea level Your Turn: Skill Practice: Write the integer that represents the situation 1.) 20°F below 0 2.) 3 seconds before liftoff 3.) no gain on the 1st down** 4.) a growth of 2 inches Graphing Integers on a number line. Graph the following on the number line below: -5, 4, 3, -2.5, 1.5 Let’s try it ourselves…. Some students have an Integer, and we need to put them in order. If you have an integer then head to the front. If you do not have a number you get to move students into position. NO TALKING ALLOWED! Word Problem: 1.) A scuba diver is 14 feet below sea level. A second scuba diver is 22 feet below sea level. Write an integer to represent the divers’ positions relative to sea level. 2.) Which two opposite numbers are exactly 32 units apart from each other on the number line? Adios Amigos Agendas: PB pg 67 # 1-5 What are Integers How can Integers be used in every day life? How does a number line help with Integers? Can Integers be decimal numbers?
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