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3-Act Task

Braided Climbing Rope

Task - Create a climbing rope my daughters can use in the basement.

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Act 1 - Take A Guess

What we know.

  • Type of Rope
  • Type of Braid

How long will the braided rope be?

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Act 2 - The Facts

What else do we know.

  • Ceiling Height - 8ft
  • Data collected throughout the project.

What do we want to know.

  • If we braid the entire rope, how long is it?
  • Is the braid long enough for a 3 and 5-year-old to climb?
  • If the length of the braid is 60 inches, how long is the tail?

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Act 3 - The Reveal

Complete Data Set

Desmos Plot

  • You can see the length was about 77 inches. When you include the ring and the hook hanging from the ceiling, the height was nearly perfect.

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Act 4 - Beyond Act 3

  1. How long will the purchased rope need to be if we wanted a 25 foot long braid?

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  • Gym climbing rope is typically 1.5 inches in diameter. What was the diameter of the braided rope? See image to the right for help.

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