The learning that occured during simply playing with these marbles was fabulous! They needed a wee bit of help to build the run, but once it was up they learned all sorts of amazing things. Cause and effect was experienced each time part of the run was out of its place. Basic physics was experienced in the simple act of releasing the marble into the first hole. The lessons were as endless as the fun that was had! The six marbles that came with the run were just not nearly enough, so we dug out the jar of marbles that we have (for fresh flowers or any other thing that one can imagine using marbles for) and even more fun was had. They sent marbles through the run until the jar was empty and the pool at the bottom of the run was full. The three of us had a blast!