Brain Puzzles (The Brain)
'What We Do All Day' is one of our go-to sites for seeking out math games and brain puzzles. We set out several this week as our intro to Brain Studies.
Simple set up for a super challenging Bead and String Game. How do you move the bead from the left string to the right, without taking out any of the knots?....
Erich Friedman Colour Puzzles
