A SchoolBook calculation, based on city enrollment data, that expresses the racial and ethnic mix of the student body on a 100-point scale.

Its glass facade, divided into four planes that appear to slide past each other on a steep vertical incline, expresses the mix of uses within.

The irregular massing of Columbus Center expresses the mix of uses inside.

Across the gallery, in a pile of hand puppets, is a Kermit replica with which visitors may try for the puckered mouth expressing the mix of resignation and tolerance that was the star's trademark.

Call it childish if you want, but the fact is I've been unable to adequately express the chaotic mix of anger, helplessness, fear, and rage I was feeling at the time.