One of our table invitations today involved squares of cork, giant pushpins and colored paper. The children were invited to poke holes through the paper with the pushpin and create a design. L and O were most interested in the varying size and placement of the holes they could make with the pushpins. O enjoyed the sensation of pushing extra hard with both hands. L discovered that if he wiggled the pin around, the holes would get bigger. D and H were most interested in the eff