Yep, it's simply Montessori Blindfold Activity. It was so popular that Nathaniel constantly worked with that for about 2 weeks every day. He kept changing sets of cylinders and adding them up for more challenge.
It was his first attempt so he felt a little weird doing that with the mask on. After couple of times his attitude changed. He wanted to show me his work each time he did activity. After 2 weeks it was over ;-)
Eaton tried to do the same with more challenging idea. He put map of the world together. (Although he put the mask upside down ;-)
If your child is bored with the homeschooling day add some fun with sleeping mask on the shelf. Guaranteed your child will love it!
This activity was presented few months ago, but because I had long break I post it on the blog now.
Have a good day!