Someone was mad at someone else. Get your questions out. He slaps the hand of another, dressed exactly the same, and sits down. The questions start screaming like bullets through the air. Height and width, negatives vs. non-negatives.
Calculators are unmasked on desks in rapid succession.
With chalk in hand, Oaks jumps back and forth from between the desks to the board. Okay, domain of a function. The lights flick off and she plugs her graphing calculator into the overhead projector. A parabola snakes a curve on the glowing bluish display. It s all over in 10 seconds.