Using Negative and Absolute Numbers

Using Negative and Absolute Numbers

Construct and Critique Arguments

Opening

Construct and Critique Arguments

The absolute value of a number is the distance a number is from 0 on a number line. The symbol |a| is used to indicate the absolute value of a.

Watch the video.

  • What did Carlos think absolute value was at the beginning of the video?
  • What did Jan suggest doing to help them think about absolute value?
  • What argument did Carlos use to say that the absolute value of 12 cannot be –12?
  • What model did Jan and Carlos use to help them understand absolute value?
  • What would Carlos have said the absolute value of 8 is at the beginning of the video? What would Carlos have said the absolute value of 8 is at the end of the video?

 

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