Lots of students try to use a ruler or find the need to fill out every side lengths to find the perimeter! Students can learn that this is NOT THE CASE through this cool problem!
 
Please check out my YouTube Channel "Math Challenge" for the SOLUTION! SCAN that QR Code to take you right to the video!
 
I would be SUPER DELIGHTED AND HAPPILY EMBARRASSED LOL if you showed my video to your class explaining the solution! 

I would LOVE to know how the problem worked out for your kiddos :) 
Any requests for future problems is greatly appreciated!
THANK YOU SO MUCH!! 

E-mail: knishimori@bridgemath.com