27 March 2014

The Stairs Problem

Posted on 09:16 by Anonymous

How many steps will he run on the super stairs? How long will it take him to run them?

Write down an estimate and share it with your classmates. 
  1. What information would you need to solve this problem?
  2. Write down your thoughts as comments to this blog post.
  3. Extra for Experts: If someone wanted to run 1,000,000 steps, what kind of super staircase would that require?
Put your thoughts as comments to this post - post anonymously but please put your name to your ideas.
Posted in , , , | 4 comments

4 comments:

  1. Anonymous27 March 2014 at 10:07

    We think we need the following information in order to solve this problem:
    -How long it took him (in seconds) to run up the normal stairs
    -How many steps there are on the stairs
    -What will we use to work out how long it took (for example: timer or stopwatch, paper/pencil)

    Olivia, Jenny, Helena and Reuben K

    ReplyDelete
  2. Anonymous27 March 2014 at 10:09

    There are 21 steps in the stairs - Jenny/Reuben K

    ReplyDelete
  3. Anonymous27 March 2014 at 10:22

    I reckon the answer is 470 seconds, because there is 21 steps and each time he goes up another step it takes another second. Then I counted from 2 to however long it took to get to 21 numbers and added them all together, and then doubled it to get 470 seconds.

    2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+19+20 (this is 21numbers in total)...

    Added them together = 235... multiply this by 2 = 470 seconds in total

    Reuben K

    ReplyDelete
    Replies
    1. Anonymous27 March 2014 at 10:23

      Great thinking Reuben! How many steps did his feet touch as a result of doing the super stairs?
      Rob

      Delete

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