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COMPARING AND ORDERING INTEGERS

COMPARING AND ORDERING INTEGERS. 1 verses -1 WHICH IS GREATER?. Activity: Represent the Data. The arctic fox lives in places where the winter temperature is -40˚C. The desert rattlesnake sunbathes when the temperature is +40˚C. Activity: Represent the Data.

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COMPARING AND ORDERING INTEGERS

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  1. COMPARING AND ORDERING INTEGERS 1 verses -1 WHICH IS GREATER?

  2. Activity: Represent the Data • The arctic fox lives in places where the winter temperature is -40˚C. • The desert rattlesnake sunbathes when the temperature is +40˚C.

  3. Activity: Represent the Data • Tennis players like the temperature around +22˚C. • Antarctic penguins are comfortable at -2˚C.

  4. Activity: Represent the Data • The kangaroo lives where the average temperature is +29˚C.

  5. Numbers such as these (-40,+22,+40,-2 and +29) can be ordered and compared by putting them on a number line.

  6. Inquire*Refer back to previous slide if necessary. • 1.Draw a horizontal number line with positive numbers on the right and negative numbers on the left. • 2. Mark the temperatures on the number line. • 3. Do integers increase or decrease from right to left on the number line? • 4. Do integers decrease from left to right on the number line?

  7. Compare • Compare -4 and +5. Is -4 greater than or less than +5? Choose A or B. • A) -4< +5 (-4 is less than +5) • B) -4 > +5 (-4 is greater than +5) • *< this is the symbol for less than it resembles an L • *> this is the symbol for greater than it resembles a backwards L

  8. Solution • If you chose A) you’re correct! -4< +5 (-4 is less than +5)

  9. Take the Challenge! Put your Skills to the Test • Click the provided link and scroll down to the bottom of the page, take the “challenge” that awaits! • http://www.bbc.co.uk/schools/ks3bitesize/maths/number/negative_numbers/revise2.shtml

  10. Practice • Complete 6.1 pg 37 “Comparing Positive and Negative Numbers” in your workbook.

  11. Finished? • If you have finished your practice questions you may come and retrieve a deck of cards and play the “Integer Showdown” card game with your table group.

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