# Mystery Globes Estimation Challenge

Dive into a fun challenge to estimate the number of globes in a glass based on a series of clues. Narrow down possibilities, apply logical thinking, and make your best estimate. Exciting and engaging way to exercise estimation skills. The reveal uncovers 57 globes, see if your estimate was on point!

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**Gobs of Globes,**Level 2 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**How many globes are in the glass?**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**Clue #1**Clue #1 The answer is between 50 and 90. Clue #2 Clue #2 The answer is a number in this pattern: 51, 54, 57, 60, Clue #3 Clue #3 The answer is an odd number. Clue #4 Clue #4 25 + 25 + 25. The answer is not equal to Clue #5 Clue #5 The answer includes the digit 7. Steve Wyborney www.stevewyborney.com**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**The Reveal**57 globes 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**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