Of course, some building went on...and those people found themselves put to work in the "animal pen."
And some of those guys found their way into our barley. (We were scooping and pouring--but that's a different post.)
Adding some art materials to the blocks center can lead to some different play. Kids that may use blocks more than markers can suddenly engage with a new material. And some kids that may not venture much into the blocks center may become involved in a new place in the room. Mixing it up in the room can create more fun and more learning.