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  1. Learning ObjectiveName _______________________ Today, we will identify1 negative and positive integers on a number line. 1 find CFU What are we going to do today? What does identify mean? Identify means ________. Activate (or provide) Prior Knowledge A number line shows the orderof numbers based on their value. Complete the number line below by filling in the blanks. 0 1 2 5 6 8 CFU Students, you already know that positive numbers can be represented on a number line based on their value. Negative numbers can also be represented on a number line. Today we will identify negative and positive numbers, called integers, on a number line.

  2. Concept Development Negative Integers PositiveIntegers Zero • A negative integer is a number less than zero. • Negative integers are shown with a negative sign (-). • –3, –21 • A positive integer is a • number greater than zero. • Positive integers are shown with a positive sign (+) or no symbol. +3or3, +21 or 21 Zero is neithernegative nor positive. Integers on a Number Line Negative integers are located2 on the left side of 0. Positive integers are located on the right side of 0. -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 2 placed CFU What type of integer is -4? How do you know? A Positive B Negative What type of integer is 9? How do you know? A Positive B Negative On which side of the number line would you look to find the location of the integer -6? How do you know? ALeft of 0. BRight of 0. 0 In your own words, what is different between negative and positive integers? Negative and positive integers are different because __________________.

  3. Skill Development/Guided Practice C D E F J K L M -5 0 5 -5 0 5 A negative integer is a number less than zero. A positive integer is a number greater than zero. -2 -1 0 1 2 – Negative + Positive Identify negative and positive integers on a number line. Step #1: Read the question carefully. Step #2: Identify the location of the integer on the number line by counting from zero. (Hint: Negative integers are on the left of zero and positive integers are on the right.) Step #3: Represent3 the integer on the number line; then, answer the question. 3 show T G P Z B W J -10 -5 0 5 10 2. Which letter on the number line identifies the location of the integer -2? 1. Which letter on the number line identifies the location of the integer -4? 3. Which letter on the number line identifies the location of the integer 6? 4. Which letter on the number line identifies the location of the integer 3? 5. What letter best shows the location of the integer -3 on the number line below? 6. What letter best shows the location of the integer -7 on the number line below? CFU (#2) How did I/you identify the location of the integer on the number line?

  4. Relevance A negative integer is a number less than zero. A positive integer is a number greater than zero. 1. Identifying negative and positive integers will help you understand change in temperature. Morning Temperature: Afternoon Temperature: -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 2. Identifying negative and positive integers will help you do well on tests. CFU Does anyone else have another reason why it is relevant to identify negative and positive integers on a number line? (pair-share) Why is it relevant to identify negative and positive integers on a number line? You may give one of my reasons or one of your own. Which reason is more relevant to you? Why?

  5. -5 0 5 R S T U -5 0 5 A negative integer is a number less than zero. A positive integer is a number greater than zero. -2 -1 0 1 2 Skill Closure Identify negative and positive integers on a number line. – Negative + Positive Step #1: Read the question carefully. Step #2: Identify the location of the integer on the number line by counting from zero. (Hint: Negative integers are on the left of zero and positive integers are on the right.) Step #3: Represent the integer on the number line; then, answer the question. L Y Q P 1. Which letter on the number line identifies the location of the integer -3? 2. What letter best shows the location of the integer 7 on the number line below? -10 -5 0 5 10 Constructed Response Closure Alexis identified -4 on this number line. Explain why her answer is incorrect. ___________________________________________________________________________________________________________________________________________________________________________ Summary Closure What did you learn today about identifying negative and positive integers on a number line? Day 1 ______________________________________________________________________________________________________________ _________________________________________________________Day 2 ______________________________________________________________________________________________________________ _________________________________________________________

  6. Independent Practice W X Y Z A B C D -5 0 5 -5 0 5 A negative integer is a number less than zero. A positive integer is a number greater than zero. -2 -1 0 1 2 – Negative + Positive Identify negative and positive integers on a number line. Step #1: Read the question carefully. Step #2: Identify the location of the integer on the number line by counting from zero. (Hint: Negative integers are on the left of zero and positive integers are on the right.) Step #3: Represent the integer on the number line; then, answer the question. P G T Z W Y J B -10 -5 0 5 10 1. Which letter on the number line identifies the location of the integer -6? 2. Which letter on the number line identifies the location of the integer -8? 4. Which letter on the number line identifies the location of the integer 8? 3. Which letter on the number line identifies the location of the integer 4? 5. What letter best shows the location of the integer -2 on the number line below? 6. What letter best shows the location of the integer 2 on the number line below?

  7. Periodic Review 1 C D E F M N Q P -5 0 5 -5 0 5 A negative integer is a number less than zero. A positive integer is a number greater than zero. -2 -1 0 1 2 – Negative + Positive Identify negative and positive integers on a number line. Step #1: Read the question carefully. Step #2: Identify the location of the integer on the number line by counting from zero. (Hint: Negative integers are on the left of zero and positive integers are on the right.) Step #3: Represent the integer on the number line; then, answer the question. Q G T Z U B J Y -10 -5 0 5 10 1. Which letter on the number line identifies the location of the integer -7? 2. Which letter on the number line identifies the location of the integer 1? 3. Which letter on the number line identifies the location of the integer 7? 4. Which letter on the number line identifies the location of the integer -1? 5. What letter best shows the location of the integer 1 on the number line below? 6. What letter best shows the location of the integer -6 on the number line below?

  8. Periodic Review 2 S T U V -5 0 5 P Q R S -5 0 5 A negative integer is a number less than zero. A positive integer is a number greater than zero. -2 -1 0 1 2 – Negative + Positive Identify negative and positive integers on a number line. Step #1: Read the question carefully. Step #2: Identify the location of the integer on the number line by counting from zero. (Hint: Negative integers are on the left of zero and positive integers are on the right.) Step #3: Represent the integer on the number line; then, answer the question. Q Z G T U Y J B -10 -5 0 5 10 1. Which letter on the number line identifies the location of the integer -9? 2. Which letter on the number line identifies the location of the integer -11? 4. Which letter on the number line identifies the location of the integer 9? 3. Which letter on the number line identifies the location of the integer 11? 5. What letter best shows the location of the integer -7 on the number line below? 6. What letter best shows the location of the integer 7 on the number line below?

  9. Periodic Review 3 J K L M E F G H -5 0 5 -5 0 5 A negative integer is a number less than zero. A positive integer is a number greater than zero. -2 -1 0 1 2 – Negative + Positive Identify negative and positive integers on a number line. Step #1: Read the question carefully. Step #2: Identify the location of the integer on the number line by counting from zero. (Hint: Negative integers are on the left of zero and positive integers are on the right.) Step #3: Represent the integer on the number line; then, answer the question. G T Q Z U B J Y -10 -5 0 5 10 1. Which letter on the number line identifies the location of the integer 9? 2. Which letter on the number line identifies the location of the integer 2? 3. Which letter on the number line identifies the location of the integer -9? 4. Which letter on the number line identifies the location of the integer -2? 6. What letter best shows the location of the integer -1 on the number line below? 5. What letter best shows the location of the integer 6 on the number line below?

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