September 13 2017

Weds.-Thurs. 9/13-9/14/17 – Math

Welcome to Math!

Please take out:

  • Signed 1.1 Quiz
  • Comparing Integers sheet
  • Unit 1 packet
  • pencil
  • Chromebook

Warm-Up:

1.3 Introduction Video

Preview Vocab: absolute value, credit, savings, balance, account, debt

 

Lesson: 1.3 Absolute Value

Learning Target copy

 

Learning Target: Students will be able to demonstrate how to find and use an absolute value.

Engage:

Have you ever borrowed money from a friend? How can you mathematically describe owing money?

Login on my.hrw.com and go to the Interactive Student Edition (first yellow book) –> Module 1 –> 1.3 Absolute Value

 Explore:

  • Explore Activity 1, p. 19
    • You can use absolute value to describe or compare real-life distances such as how far you ride a bike, dive under water, or ascend in a Ferris wheel.
  • Explore Activity 2, p. 21-top of 22
    • Remember: negative amounts represent points that the person needs in order to stay in the game.
    • How can you tell which player needs the most points?
    • If a player needs 50 points and has a change of -30 in his or her point total, how do you find the number of points the player needs?
    • If a player’s point total decreases, what happens to the number of points the player needs to stay in the game?

Explain:

  • Absolute Value in a Real-World Situation: Example 1, p. 20
    • How would you define a balance on a gift card?
    • How would you explain what a balance of $0.00 on a gift card means?
    • How can you use absolute value to show the amount Jake has left on his gift card?
  • Your Turn, top of p. 21 (4-10)
    • Distance is always ____.
    • What can you say about the distance of numbers -55 and 55 from 0?

Elaborate:

  • Summarize: How do you use absolute value to compare two negative numbers, such as fees, or amounts owed on a credit card or other kind of loan?
  • Guided Practice, p. 22.
    • Remember, a credit is a payment that decreases the balance owed, while a fee is like a purchase that increases the balance.

Homework:

  1. Do p. 22-24 (odds).

(Switch name cards for next class.)

I hope you had a great day!

See you tomorrow!


Posted September 13, 2017 by missnichols in category Math, Miss Nichols' posts

About the Author

I am a teacher of 6th grade honors language arts and math at Jane Addams Middle School in Lawndale, CA.

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