Zoraida wrote out her name on her parchment. Instead of writing all the numbers under her name she just looked at the chart after writing it down underneath her name.
Quote:
Zoraida Elizabeth Trowbridge
1---2---3---4---5---6---7---8---9
A---B---C---D----E----F---G---H----I
J----K---L----M---N---O---P---Q---R
S----T----U---V----W---X---Y----Z
Having alot of letters in ones name made it easy to tell that she would likely not be missing any letters. Which taking a look at it she realized was definitely true. All letters present and accounted for.
Then she flipped her book and realized she did not have that many pages left. She should have spoken up in the beginning however since she was in the back looking over the textbook she did not.