This document outlines a challenge for 5th grade STEM students to collaboratively stack and unstack 6 cups into a tower using only 25 inches of yarn and a rubber band without directly touching the cups with their hands. Each team member can only use one hand and must work together to complete the stacking and unstacking as fast as possible, as there will be a competition on the final day to see which team can finish the fastest.

1. {
Stack It Up Challenge
5th Grade STEM

2.  Using 6 cups, create a cup tower like this
Your Challenge

3. Sounds simple,
right?

4.  You may not touch the cups with your
hands
 ONLY the string and rubber band may
touch the cups
 Every member of your team must help
 Each member may only use one hand
 You must stack the cups and unstack the
cups using 25 inches of yarn and one rubber
band
WRONG!

5.  We will have a competition on the
final day of the rotation for the
fastest collaborative stacking and
unstacking.
Will your team win?!?