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Scatterplots and Candles

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Candle burning - Act 1

  • Watching a candle burning
  • What do you notice, what do you wonder?

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Candle burning - Act 1

  • Watching a candle burning
  • What do you notice, what do you wonder?
  • Can you predict how long it will take to burn out?

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Candle burning - Act 1

  • Watching a candle burning
  • What do you notice, what do you wonder?
  • Can you predict how long it will take to burn out?
  • What information do we need?

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Candle burning - Act 2

  • Graph information in Desmos
  • Make a table of time against height of candle
  • Make a line of best fit for this data
    • Do not use the automatic feature of Desmos for this
    • Your line should look like y=mx+b, where you calculate m, b
    • Graph the line as well
  • Predict, using your line, how long the candle will take to go out.

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Candle burning - Act 3

  • What do the variables mean - height, time
  • What variable values work for when the candle is out?
  • How do we find this?