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Opening Activity

Opening Activity. In your spirals, complete the pyramid by filling in the missing numbers. Each number is the sum of the numbers in the two boxes below it. -4. -8. –1. 2. –3. Have homework out and ready to be checked. (Page 23, #16-19). Homework Check. $29 98 feet 92 degrees

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Opening Activity

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  1. Opening Activity In your spirals, complete the pyramid by filling in the missing numbers. Each number is the sum of the numbers in the two boxes below it. -4 -8 –1 2 –3 Have homework out and ready to be checked. (Page 23, #16-19)

  2. Homework Check • $29 • 98 feet • 92 degrees • -150 points

  3. Unit 1.4Applying Addition & Subtraction of Integers

  4. Table of Contents Date Lesson Page # Unit Multiplication Table 1 8/24 8/24 Divisibility Rules 2 8/25 Adding Positive and Negative Integers 3 1 8/28 Subtracting Positive and Negative Integers 1 8/31 Applying Integer Operations 1

  5. Learning Goals • LG 702: Students will be able to apply and extend previous understandings of operations to add and subtract rational numbers. • LG 703: Apply and extend previous understandings of operations to multiply and divide rational numbers.

  6. What are we doing today? • Today I am working with integers. • So that I can apply the addition and subtraction of integers to create expressions and solve word problems. • I’ll know I’ve got it if I can solve the following:

  7. Key Vocabulary • Associative Property – grouping does NOT matter in addition and multiplication. (8 +5) + 3 = 8 + (5 + 3) • Commutative Property – order does NOT matter in addition and multiplication. 8 +5 + 3 = 3 + 5 + 8

  8. Page 25

  9. Example 2 – Page 26

  10. Example 2 – Page 26

  11. Your Turn – Page 26 Step 1 – Analyze the information Step 2 – Formulate a plan Step 3 – Solve Step 4 – Justify and Evaluate

  12. Example 3 – Page 27

  13. Example 3 – Page 27

  14. Your Turn Herman is standing on a ladder that is partly in a hole. He starts out on a rung that is 6 feet under ground, climbs up 14 feet, then climbs down 11 feet. What is Herman’s final position, relative to ground level? -6 + 14 - 11 Herman’s final position is 3 feet underground. -6 + 14 + (-11) -6 + (-11) + 14 -17 + 14 -3

  15. Homework • Page 28, #1-5 • Due at the start of next class

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