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21 st Century Lessons

21 st Century Lessons. Intro to Absolute Value 6.NS.7 (c). Warm Up. OBJECTIVE: SWBAT use absolute values to determine the magnitudes of quantities. At left is a compass with the 4 primary directions. If someone travels 100 miles to the west, do we say they have traveled -100 miles?

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21 st Century Lessons

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  1. 21st Century Lessons Intro to Absolute Value 6.NS.7 (c)

  2. Warm Up OBJECTIVE: SWBAT use absolute values to determine the magnitudes of quantities. At left is a compass with the 4 primary directions. If someone travels 100 miles to the west, do we say they have traveled -100 miles? Explain why or why not. Agenda

  3. Lesson Vocabulary and Language Objectives -3 3 0 3 3 3 Agenda

  4. Launch 1 – Intro to Absolute Value When we want to know distance from 0, we use Absolute Value. Joseph lives in the green house. Alexa 2 1) Explain how far away Joseph’s friends live. 1 -2 -1 0 1 2 Nick Dan -1 2) Nick and Dennis are at -2. Explain how they are positive 2 away from Joseph. -2 Dennis Absolute values are always positive. Agenda

  5. Explore 1 – Magnitude of Quantities 3) Create an inequality statement (>, <) that relates the values represented by the green and red dots. 5 -5 -4 -3 -2 -1 0 1 2 3 4 4) What are the absolute values of the quantities represented by the red and green dots? 5) Create an inequality statement that relates the absolute values of the dots. 6) Which number, 4 or -5, do you think has the greater magnitude? Explain. Even though 4 is much larger than -5, -5 has a greater magnitude than 4. Absolute value proves this. Magnitude is the size of the distance in any given direction. Agenda

  6. Explore 2 Hallway at Jessie’s School The Café is in the middle of the school’s hallway. Jessie just ate lunch in the Café. After lunch, she attended class 2 rooms to the right of the café (Math). She then went 5 rooms to the left of Math. After this class she traveled 3 rooms to the right. 7) In what room does Jessie finish her day? 8) After leaving the café, how many total rooms did Jessie either pass by or enter? *Hint - if she passes or enters a room more than once, it should be counted again. 9) Assuming the Café is the number 0, write an equation that represents the answer to #7? 10) Assuming the Café is the number 0, write an equation that represents the answer to #7? *Hint – you will need to use absolute value symbols. Agenda

  7. Explore 2 Hallway at Jessie’s School 3 -5 2 7) Jessie finishes in the café. 8) Jessie passes or enters 10 rooms. 9) 0 + 2 – 5 + 3 = 0 (Distance from starting point) 10) (Absolute distance traveled) Agenda

  8. Summary Explain the similarities and differences of the numbers above. You must use the terms absolute value and magnitude in your summary. *Challenge - Explain whether you want a high or low magnitude of debt. Agenda

  9. Assessment Solve the following. A diver is 15 feet below the surface of the water. 4) What number would represent his position on a number line? 5) What number would represent the distance/magnitude of his dive? Agenda Name:__________ Key to Leave

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