Esti-Mystery Ribbon Length Challenge

“Length of Ribbon”
www.stevewyborney.com
Steve Wyborney
Important Note:
If you can see this box, then the slide show is
not playing and the reveal won’t work.
Here is the solution:
If you are using PowerPoint, click on Slide
Show, then click on From Current Slide.
If you are using Google Slides, click on View
then Present.
As the clues appear, use the
information to narrow the
possibilities to a smaller set.  After
each clue, use estimation again to
determine which of the remaining
answers is the most reasonable.
When straightened, how many
inches long is the ribbon?
Write down your first estimate.
After each clue, you’ll see if your
estimate is still a possibility.  After
each clue, if it is no longer possible
write down a new estimate – and
be prepared to explain why you
chose it.
www.stevewyborney.com
Steve Wyborney
Clue #1
Clue #2
Clue #3
Clue #4
Clue #5
Clue #1
The answer is between 25 and 40.
Clue #2
Cross out the missing numbers:
18, 21, 24, ___, ___, ___, ___, ___,
Clue #3
The answer is an even number.
Clue #4
The answer does not include
the digit 8.
Clue #5
The answer is not equal to the
number of cents made by 2 dimes,
2 nickels, and 2 pennies.
www.stevewyborney.com
Steve Wyborney
After seeing the clues, you have
narrowed the possibilities to a
small set of numbers.  Before you
see the answer, select your final
estimate.  Write it down, and
explain to someone why you chose
that number.
www.stevewyborney.com
Steve Wyborney
26 inches
The Reveal
Click to see the answer.
www.stevewyborney.com
Steve Wyborney
Important Note:
If you can see this box, then the slide show is
not playing and the reveal won’t work.
Here is the solution:
If you are using PowerPoint, click on Slide
Show, then click on From Current Slide.
If you are using Google Slides, click on View
then Present.
 
The Maze
Hundreds Chart
 
The Original
50 Splat! Lessons
 
The Original
20 Fraction
Splat! Lessons
 
The Original
80 Cube Conversations
Lessons
 
More Free, Downloadable Resources From Blog Posts
 
20 Days of
Number Sense
& Rich Math Talk
 
The Original 40
Estimation Clipboard
Sets
 
This is 
the course
 I’ve designed to teach you how to create
 
The Esti-Mystery Creator Course
 
your own Esti-Mysteries that are tailored for your class.
 
Click 
here
 to download more free Esti-Mysteries.
 
51 Esti-Mysteries
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In the Esti-Mystery Ribbon Length Challenge, participants use clues to narrow down possibilities and estimate the length of a ribbon when straightened. Through logical deduction and estimation, they arrive at a final estimate before the reveal of the solution, which turns out to be 26 inches. This engaging activity encourages critical thinking and estimation skills in a fun and interactive way.


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  1. Length of Ribbon Important Note: If you can see this box, then the slide show is not playing and the reveal won t work. Here is the solution: If you are using PowerPoint, click on Slide Show, then click on From Current Slide. If you are using Google Slides, click on View then Present. Steve Wyborney www.stevewyborney.com

  2. When straightened, how many inches long is the ribbon? As the clues appear, use the information to narrow the possibilities to a smaller set. After each clue, use estimation again to determine which of the remaining answers is the most reasonable. Write down your first estimate. After each clue, you ll see if your estimate is still a possibility. After each clue, if it is no longer possible write down a new estimate and be prepared to explain why you chose it. Steve Wyborney www.stevewyborney.com

  3. Clue #1 Clue #1 The answer is between 25 and 40. Clue #2 Clue #2 Cross out the missing numbers: 18, 21, 24, ___, ___, ___, ___, ___, Clue #3 Clue #3 The answer is an even number. Clue #4 Clue #4 the digit 8. The answer does not include Clue #5 The answer is not equal to the number of cents made by 2 dimes, 2 nickels, and 2 pennies. Clue #5 Steve Wyborney www.stevewyborney.com

  4. After seeing the clues, you have narrowed the possibilities to a small set of numbers. Before you see the answer, select your final estimate. Write it down, and explain to someone why you chose that number. Steve Wyborney www.stevewyborney.com

  5. The Reveal 26 inches Click to see the answer. Important Note: If you can see this box, then the slide show is not playing and the reveal won t work. Here is the solution: If you are using PowerPoint, click on Slide Show, then click on From Current Slide. If you are using Google Slides, click on View then Present. Steve Wyborney www.stevewyborney.com

  6. 51 Esti-Mysteries Click here to download more free Esti-Mysteries. C:\Users\Steve Wyborney\Desktop\Picture5.png The Esti-Mystery Creator Course This is the course I ve designed to teach you how to create your own Esti-Mysteries that are tailored for your class. More Free, Downloadable Resources From Blog Posts C:\Users\Steve Wyborney\Desktop\Maze Pic.jpg C:\Users\Steve Wyborney\Desktop\20 Days Title Pic.jpg C:\Users\Steve Wyborney\Desktop\Presentation1.jpg C:\Users\Steve Wyborney\Desktop\SPLAT blog post folder\Splat Promo Images and GIFs\Splat Level 3 B.jpg C:\Users\Steve Wyborney\Desktop\Splat Promos HUGE SET\Slide6.JPG C:\Users\Steve Wyborney\Desktop\8.8.2018 Desktop\Estimation Clipboard Desktop Materials\Bundle 1 Glasses Pic.jpg 20 Days of Number Sense Rich Math Talk 20 Days of Number Sense & Rich Math Talk The Original 50 Splat! Lessons The Maze Hundreds Chart The Original 20 Fraction Splat! Lessons The Original 80 Cube Conversations Lessons The Original 40 Estimation Clipboard Sets

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