Sheldon’s eye twitched. “I have an IQ of 187. I don’t need tutoring from a girl who still uses glitter pens.”

An hour later, Sheldon had not only corrected the proof but had also learned a new method for visualizing exponents. Delia was packing her glitter pens.

“I’m here for the math,” Delia said flatly.

He felt understood.

“I know.” Delia sat down next to him, uninvited. “You rush. You see the big pattern and skip the small pieces. But math is all small pieces.”