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 4 –7 5 –1 –9 8 2 –3 Have homework out and ready to be checked. (Page 23, #16-19)

Homework Check $29 98 feet 92 degrees -150 points

Unit 1.4 Applying Addition & Subtraction of Integers

Table of Contents Date Lesson Page # Unit 8/24 Multiplication Table 1 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

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.

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:

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

Page 25

Example 2 – Page 26

Example 2 – Page 26

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

Example 3 – Page 27

Example 3 – Page 27

Herman’s final position is 3 feet underground. 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

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